I've been a happy ebayer for 17 years. Recently they added a new security verification process and I got locked out of my account. No way of getting through to them, so asked someone to send them an email explaining my problem.
After a lot of hassle I managed to speak to someone: No smart phone, no way of getting into my account. Byeeee.
This is the start. More places going cashless in the UK. If you don't comply you are out of the system.
go a step further than never admitting to owning one.
Explain how you would love to own one if they are willing to pay for one and the monthly service :D
Then get one and don't use it, and always take the sim card out except for 1h every week to check any msg's they may have given you.
That's pretty much what I do. :D