I found his really frustrating but this is what worked for me. I did this on a laptop.
1. Login to Paypal.com
2. Click the cog wheel on the top right.
3. Click Security near the top of the page.
4. Click Update next to "Security key."
5. For those that do not see any option to disable / Turn Off 2-step verification, choose "Use security key"
It will ask you to authenticate via text (Hopefully for the last time).
The process to setup a security key failed because it's a USB dongle thing I don't have and you probably don't either.
When that failed, 2 step verification was disabled and I received an email telling me it was off.
Refreshing the browser can sometimes help to make option appear (Hold shift while clicking the circular arrow at the top of your browser to the left of the URL bar)
There is clearly a concerted effort to make mobile phones necessary for everyday life and I believe this is to prepare for the gradual transition towards a fully cashless society. Use cash as much as possible to prevent this from happening and don't give in to those who try to insist you carrying a phone is essential for everyday life.
