At Callsun, we are dedicated to providing a seamless, secure, and transparent shopping experience for all our customers. Whether you are setting up your first off-grid power system or upgrading your solar setup, we offer a variety of flexible payment methods to ensure your transaction is as efficient as the energy we provide. Below, you will find information regarding our accepted payment options and key payment policies.
Data Security & Privacy
At Callsun, your privacy and data security are fundamental to our commitment to you. We employ industry-leading security protocols to ensure your information remains confidential throughout every transaction.
Encryption Standards：We utilize Secure Sockets Layer (SSL) technology with 256-bit encryption to protect all sensitive information transmitted through our website.
PCI DSS Compliance：Our payment processing environment is fully compliant with the Payment Card Industry Data Security Standard (PCI DSS). This ensures that all credit card transactions are handled in a secure, audited environment.
Data Usage：We do not sell, rent, or share your personal payment information with third parties for marketing purposes. Your data is used exclusively to facilitate your order processing and to improve your shopping experience.
Payment Methods
PayPal
Standard PayPal Payment：Pay securely with your PayPal account balance, linked credit/debit cards, or bank account. Quick checkout for users with existing accounts; new users can create an account during the payment process.
PayPal Express Checkout / PayPal ：Enjoy a faster checkout experience by using your saved PayPal information directly.
Credit Card / Debit Card
We accept major credit/debit cards (Visa, Mastercard, American Express, etc.) and digital payments (Apple Pay, Google Pay).
Security Assurance： Your card information is safeguarded with advanced security technology. Callsun does not store your card numbers on our website, ensuring maximum protection of your data.
Payment Declined ：For transaction-related questions or issues on our website, please contact your card-issuing bank for assistance and relevant information.
Our Installment Partners
Klarna：
Klarna is ideal for both small everyday items and larger solar equipment, offering a variety of plans tailored to your needs.
Pay in 4 (Interest-Free): Split your purchase into 4 equal payments. The first payment is due at checkout, with the remaining three automatically charged every 2 weeks. No interest or fees when paid on time.
Pay in 30 Days: Shop now and pay up to 30 days later. You only pay for what you keep, with no interest if paid on time.
Monthly Financing: Need more time? Spread the cost of your solar projects over 3 to 24 months. Interest rates range from 0% to 35.99% APR, depending on your credit profile.
Affirm:
Affirm is a favorite for high-ticket purchases, providing clear, fixed payment schedules with no hidden surprises.
Pay in 4: 4 interest-free, biweekly payments for smaller order totals.
Monthly Installments: Choose flexible terms from 3 to 36 months for larger solar installations. See your total repayment cost upfront—what you see is exactly what you’ll owe, with no hidden fees or compounding interest.
Important Disclosure
Credit Approval: All financing options (Klarna Monthly Financing / Affirm Installments) are subject to credit approval by the respective provider.
No Hidden Costs: Our BNPL partners prioritize transparency. You will always be informed of the total repayment amount and APR before you commit to a purchase.
Late Payments: Missing a payment may affect your account status with the provider and may, in some cases, be reported to credit bureaus. Please manage your payments via the provider's official app to stay on track.
Dispute Resolution & Refunds
We strive for complete customer satisfaction. If you encounter any unauthorized charges or transactional discrepancies, please contact us at services@callsunsolar.com immediately. We are committed to working closely with you and our payment partners to investigate and resolve issues as a priority.
Refund Processing： Once a refund is approved, the funds will be returned to your original payment method. Depending on your bank or card issuer, the processing time typically takes 7–10 business days.
Currency & Tax
Transaction Currency：All transactions on our store are processed in USD. Please note that if your local currency differs, your bank may apply its own exchange rate and potential foreign transaction fees.
Sales Tax：Applicable sales taxes are calculated based on the shipping address and will be clearly displayed during the checkout process before you finalize your payment.
International Duties：For orders shipped outside the US, please be aware that customs duties, import fees, and taxes may apply depending on your destination country's regulations. These charges are the responsibility of the customer.
FAQ
Can I change the payment method for an order?
Unfortunately, once an order has been submitted, the payment method cannot be modified. If you need to change your payment method, you may need to cancel the current order and place a new one.
Can I pay in installments?
Yes, we are committed to providing you with flexible payment options. We support BNPL (Buy Now, Pay Later) and installment services through partners like Klarna and Affirm to help you manage your budget more effectively.
Why did the payment failure occur and how can I fix it?
If your payment is declined, it may be due to various reasons. Please try the following steps to resolve the issue:
Try a different payment method or card type: Payment issues are often linked to specific card providers or bank authorization settings. Please try using a different credit card, debit card, or another payment method (such as PayPal or Digital Wallets).
Clear browser data: Please clear the cache and cookies of your current web browser, or try using a different browser to access our site.
Switch devices: If you are using a mobile device, please try placing your order on a PC/Desktop, or vice versa, to ensure a stable connection.
Verify your information: Double-check that all payment details, including the billing address and card information, are entered accurately.
Contact your bank: Sometimes, banks may automatically block international or online transactions for security reasons. Contact your card-issuing bank to authorize the transaction.
When will my payment be charged?
Once your order is successfully placed and confirmed, the payment will be processed immediately. You will receive an automated order confirmation email containing your order summary. If you are using a BNPL (Buy Now, Pay Later) service, please refer to the terms and conditions provided by the payment partner regarding their specific billing cycle.
Are there any extra fees for using specific payment methods?
Callsun does not charge extra fees for standard payment methods like credit cards, debit cards, or PayPal. However, please be aware that if you choose to use BNPL or financing services, interest or late fees may apply depending on the agreement you have with the service provider (e.g., Klarna or Affirm).
Customer Service
Should you encounter any issues or have questions regarding your payment, our dedicated customer service team at Callsun is ready to assist you.
Email Support : For detailed inquiries or assistance with payment troubleshooting, please reach out to our team at services@callsunsolar.com.
Live Chat : For immediate assistance, please click the chat icon at the bottom right of our website to connect with a support representative in real-time.