Payment not reflecting after paying on 18 Dec

my LTE contract was suspended because I skipped payment end of November and on the 18 December a debit order went through with payment for November and December and even today when I call the call centre they say it is not reflecting and it may take 7 to 14 days. I mean really now 14 days waiting for payment to reflect and my line reconnected. I think this is total nonsense. it makes sense to have a disconnected line if I didn't pay not after 6 working days of payment.