Similar experience. Getting “Unable to connect. Try later” error.
Very helpful lady on the Help Desk found that my SIM had been deactivated at 9.20pm last night (27th November), and an old one reinstated.
Seems like it might have been a system-wide change, after a batch of replacement SIMs went out deactivated (so never worked when received) but have now been switched on (thus deactivating any new SIMs associated with the same phone number).
Which doesn’t help, I know (unless you still have an old SIM — it might just work, today).
Only other solution offered was to request a new SIM. I’m sitting tight, for now, in case they manage to roll-back the activation/deactivation from last night.
