Having almost identical problems on my Samsung Active 2 4g Watch. Everything was set-up as well in store last year between lockdowns, I am on the £5pm airtime plan yet I am unable to make/receive phone calls via the Watch (messaging and data work fine) whilst using 4g/Wifi.. checking the phone, it recognises that a remote call is coming through but then instantly hangs-up.
I've been through the o2 Guru Team on Twitter for months, who though have been helpful have not resolved this issue, I even sent my watch off to get it repaired but clearly the Watch is fine, I was then told by the Twitter team that I would need to go into an o2 store once shops reopened as there is some sort of 'process' that needs to be done in store. I visited an o2 store this past week and they had no idea about any process and just went through the usual troubleshooting methods that have so far failed up to this point and I have tried them all.
Weird thing is though, I reset the esim and rescanned the esim yesterday and if I switch the network mode to 3g only on the Watch I can make and receive phone calls with no problem at all.. problem is though, is that it is using the Watches own number with which I have been charged for.
Clearly it is an o2 issue, as other users have said, like myself Samsung reps have said just that.
Think once my contract is up later this year I'll be off to EE, have been a loyal customer for over two decades but o2 are really lagging behind in terms of their services compared to some other network providers.
