So, having called the 'PayPal' voice and struggled to get nowhere, after the phone line, still crackly, was fixed, I went online and signed in, using the landline to verify myself, and attempted to change the main number to the mobile.
This was quite easy, I went through the system, fixed it in, but it did not show a change, and logged out.
Yesterday, I spent a huge amount of money on Christmas tat gifts. I used 'PayPal' to pay for them, and attempted to verify myself via the mobile. Sure enough both the numbers showed up, sure enough I logged into the mobile number, sure enough it did not work!
It is always possible I made a mistake, I have made them before now. It is also possible 'PayPal' is attempting to kill me. However, I made use of the landline and spent money. Today, two of the 'Etsy' lassies claimed the 'goods are in the post,' and I believe them. Hopefully the two other shops also reply quickly. I would like to finish this during the coming week.
If 'PayPal' let me...