You cannot use a real Visa card because:
Privacy Protection: Using a dummy number prevents your real data from being stored in databases that might eventually be compromised in a data breach. Discard Credit Card Generator Number
No. PayPal requires you to log into a verified bank account or credit card. They run micro-deposits to verify ownership. A random generator number will never pass PayPal's verification. You cannot use a real Visa card because:
provide test card numbers for developers to ensure their payment gateways can handle various card types and error states without using real money. Educational Demonstrations Discard Credit Card Generator Number
