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Resolved! New mobile hotspot router- trying to swap sim

New mobile hotspot router that I’m trying to add sim to. It’s telling me to swap sim? Yet is new device and new sim with same number. Cannot swap as cannot receive the security message to the device and o2 not giving other options

No signal

My phone is unable to register with a network despite my area being covered by o2, I'm in central Edinburgh.

Resolved! Unable to make or recieve phone calls

I'm unable to make or recieve phone calls I'm also unable to access codes These are not being recieved I'm currently paying for a phone which I use for medical interventions That dose not function I'm awaiting a sim after speaking to an o2 responder ...

Resolved! New 5G sim card

I just recived anew phone and a new sim card. Is that sim card my old phone number? I want to keep the number.

Resolved! Data not fuctioning

Hi my data is not working (as in it says that I have signal but pages and apps using internet won’t load). I’m currently on holiday in Poland.It tells me that I have data allowance left, so I’m not sure why.Please could you help me to identify the is...

still no signal

Week 7.. or is it 8 of no or unusable signal. No access to live chat, even the 'auto assistant' is not working (the links just redirect to the forum.. and yes, tried on different browsers and devices). Still being charged full amount AND there is an ...