Some years ago, I opened a new bank account. I gave the lady at the bank all my info and told her why I didn't have a telephone number. All went smoothly and a few weeks later I received my debit card. When I tried to activate it, it was refused. I e-mailed the bank. They said my account needed a telephone number. I explained, they looked into it, and then they said I'd have to enter a spoof number like 111-111-1111 in order for the computer to consider the account valid. I did so, activated the card, and used it. Since it looked as if everything was right and proper, I transferred most of my money into that account.
The next time I tried to use the card, it was declined. I checked on-line and found my balance was fine. I e-mailed the bank, and they said my account was frozen because of suspicious activity (a fake phone number). I explained why it was fake. They said I shouldn't have done that. I attached a copy of the e-mail where their customer service told me to do it. They said I shouldn't have done that anyway, and my account would be frozen until I provided them with a confirmed telephone number. I explained yet again why I didn't have one. They said I had to have one in order to access the account, and that was the last they would discuss it.
It took almost three months and cost me $260 in lawyer's fees to get my money back because two people (the one who took my info and the one who told me to enter a spoof number) thought a telephone number doesn't really matter.
It doesn't take too many experiences like that before you learn to simply avoid any situation where the software requires information you can't legitimately provide.