Poor Service, Incompatent staff, Unbelievable nerve

I am very dissapointed in Cell C, they have seriously let me down. I had 2 contracts with them and in Aug 2021 I phoned cell c to get a settlement amount for my accounts. I asked them to add all arrears amounts and the current months amount that I owe into the settlement because I want to settle and close the account. They sent me an sms with the settlement amount which I paid and then I emailed them the proof of payment to *** as they requested. In September I noticed my account is still working and receiving data so I called them to find out why the account has not been closed. They assisted me in closing the account and sent me an sms stating my account is closed.

In October 2021 I received a statement showing I still have a balance of R1500 so I called them to query this because as too my knowledge I settled. The consultant I spoke to said this amount is in credit and they owe me this as I have over paid. End of October I phoned cell c again to query this and they made me request a refund and said I should wait 7 days for feedback. After 7 days I call them again and they tell me I Have R800 arrears now. I question this and the consultant tells me no there is a issue on my account and that amount seems incorrect and he will escalate this and I should give them 2 days. I phone again after 2 days only to be told I have R900 arrears now at cell c.

I feel it is completely unfair to have arrears because according to my understanding a settlement amount is just that too settle and not owe anything. This is so unacceptable, I would never refer them to anyone with poor service like this.