This is a rather sad message. I have just attempted to make a donation to Portable Apps via your Finance processing provider:
1: I chose credit card - the system changed the setting to Paypal. I don't use Paypal for political reasons. That's why I chose credit card. That's my business.
2: After resetting, the credit card settings insisted on my phone number, and didn't offer the opportunity to proceed without it. Setting aside that I may or may not have a telephone number, it's also my business who I am willing to give it to. Obviously you, and they, already have my email address. Why is that not good enough?