USD$
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CARD PAYPAL BANK TRANSFER Direct Debit
CVC CodeThe 3-4 digits on the back of your credit card
Enter the Zip/Postal code for your credit card billing address


Donate from your bank using Plaid, a secure and encrypted bank transfer service.
You didn't choose the bank name.

By providing your payment information and confirming this payment, you authorise (A) Signal Technology Foundation and Stripe, our payment service provider, to send instructions to your bank to debit your account and (B) your bank to debit your account in accordance with those instructions. As part of your rights, you are entitled to a refund from your bank under the terms and conditions of your agreement with your bank. A refund must be claimed within 8 weeks starting from the date on which your account was debited. Your rights are explained in a statement that you can obtain from your bank. You agree to receive notifications for future debits up to 2 days before they occur.

You didn't choose the bank name.

By providing your payment information and confirming this payment, you authorise (A) Signal Technology Foundation and Stripe, our payment service provider, to send instructions to your bank to debit your account and (B) your bank to debit your account in accordance with those instructions. As part of your rights, you are entitled to a refund from your bank under the terms and conditions of your agreement with your bank. A refund must be claimed within 8 weeks starting from the date on which your account was debited. Your rights are explained in a statement that you can obtain from your bank. You agree to receive notifications for future debits up to 2 days before they occur.

You didn't choose the country.

By providing your payment information and confirming this payment, you authorise (A) Signal Technology Foundation and Stripe, our payment service provider, to send instructions to your bank to debit your account and (B) your bank to debit your account in accordance with those instructions. As part of your rights, you are entitled to a refund from your bank under the terms and conditions of your agreement with your bank. A refund must be claimed within 8 weeks starting from the date on which your account was debited. Your rights are explained in a statement that you can obtain from your bank. You agree to receive notifications for future debits up to 2 days before they occur.




In compliance for SEPA Direct Debit network regulations the following billing address fields are mandatory.




By providing your payment information and confirming this payment, you authorise (A) Signal Technology Foundation and Stripe, our payment service provider, to send instructions to your bank to debit your account and (B) your bank to debit your account in accordance with those instructions. As part of your rights, you are entitled to a refund from your bank under the terms and conditions of your agreement with your bank. A refund must be claimed within 8 weeks starting from the date on which your account was debited. Your rights are explained in a statement that you can obtain from your bank. You agree to receive notifications for future debits up to 2 days before they occur.