http://ky-kg.facebookwkhpilnemxj7asaniu7vnjjbiltxjqhye3mhbshg7kx5tfyd.onion/business/help/132073386867900
Under Payment methods , click Add payment method . Select the payment method you want to add and click Next . Enter your payment method details, then click Save . If you experience an error while submitting your payment information, refresh the page, check your payment methods, then try again if the payment method wasn’t added.