A quick update.
I still don’t have a working phone.
I did make the mistake I predicted and took my phone back to the o2 store.
They requested a replacement. This was on Feb 14th.
I still don’t have a replacement a week later.
This saga goes on.
I actually do have my phone in my possession. Whatever repair they did last week has also knocked out my ability to make calls to add insult to injury.