O2 PAYG phone swap problems

Liz1966

I am having the same problem with O2. Have been trying to change from ancient o2 PAYG sim to a newly purchased pay monthly. I have been trying to take my old number to the new pay monthly contract since 28 March. I have repeatedly filled in their online form and keep getting texts with random problems with the information I have submitted. I wouldn't believe anyone could commit so many 'exceptions' as I apparently have. Then they have the cheek to send me a msg saying their customer services are severely restricted so only call in urgent circumstance - no they are not 'restricted' they are non-existant!
Anyway, more in hope than in expectation, if anyone can help I'd be grateful ,or is it a lost cause?
Here are the questions on the O2 form that I think I'm getting wrong:. I'm trying to take number from old O2 PAYG sim to new pay monthly O2 sim.
What kind of tariff are you on? Is this the old PAYG sim or the new pay monthly sim.
Your mobile number? Is this the one I want to keep or the new one I want changed.
PAC number - in theory I don't need this as the numbers are on the same network, however, it is a mandatory field. I've got a PAC number from the old PAYG sim but should I have got it using the new sim.
I've even managed to fail their security questions but I'm not sure how.
Yours sincerely, suffering in solidarity.

Telegraph_Sam

If anyone can "solve" this logjam and say how, they would be doing me a favour also. And publicize the communications black-out in the hope that someone in O2 hears and takes note.  I suspect (my) problem is relatively routine but with O2 customer services being in effect closed down ("upgrades and leavers excepted"!!) and none of the mobile shops being open - are there substitute helplines?? - I am scuppered.