iPhone: Screen Time limits on unusual apps/scripts + serial number mismatch

im going to try and ask a sensible question that the experts might be able too explain .

Data use on iPhone was a lot .

it seems to of calmed down now.

probably because there are lots of time limits within screen time.

i don’t know hows theses limits have been Set , remotely ?

there seem to be a lot of UI authorisation blank tabs.

also having looked at the serial number of the iphone on apple account. It is different. The phone is displaying an S but the account is displaying 5.

I had a quick look at a few subscriptions and this one seems a bit odd. The payment plans dont make much sense.

anyway the phone is in need of replacement just wondering what a good alternative might be