Please explain yourself vividly

my phones are currently suspended as i am meant to pay R2400 for the in areas that i am in. i called the accounts department and they said that the areas have been billed since April, which does not make any sense. there was a debit of R1600 that went through on October and that was for both months that i did not pay. what i knows that i haven't paid for this month which i planned to settled on Friday. this amount is R1000 in my books. the lady i spoke to agreed that the money was received but kept on saying that the amount is due to debits bouncing which makes no sense as i have been making payment even when my phone was off. Vodacom knows well that once you don't pay you suspend the account and would never re open once the amount is paid. so please let someone explain themselves to me vividly as this makes no sense.