Just look for providers with a respectable review history and be up front about your situation. A reputable provider won't ask you for innappropriate data and will likely have the savvy to figure ways around your "credential" shortcomings.

If you have no phone or cell phone you may find many providers politely dismissing you merely for reason of being problematic.

I just give my last Boss's phone # and if someone looks for me,she just tells them that I have Retired.Of course,I tell the Provider this up front.The Provider's are usually discrete enough not to ask any stupid questions.

They can pretend to be the Dentist Office or something like that.

Freedomrider gave some sound advice. Select well reviewed ladies and email them explaining that you are retired and have no work phone verification number. The better ones have several alternative methods of verifying you. You must at least have a cellphone that you control,ladies must have some way of talking to you if they choose to.