I think I figured out why Apple is not processing the payment, it is because the payment is being initiated via Credit Card from a different device. I installed the Apple Developer App on a borrowed iPhone, reenrolled to the program and paid the membership using my credit card, and it was a success. The key is to use one Apple device to enroll and then make payment.
Hope this workaround works for you!
Topic:
Developer Tools & Services
SubTopic:
General
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