on 04-01-2019 13:19
@Jo154 that sounds like a final payment not a monthly fee.
Call customer services on 202 to see why.
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone7 (EE)
on 04-01-2019 13:37
Presumably you were late for a payment(s) in which case talk to O2. They will probably reinstate your payments but will insist you clear any arrears and possibly insist on a direct debit being reinstated