Poor service delivery FNB debt review department.

I am very unhappy about the service I got from FNB debt review department. I paid my last debt review payment on the 27th of December 2019. I phoned FNB debt review department on the 30th December 2019. I was told to send a email stating the cancellation of my overdraft facility, cancellation of my account at FNB and to get a paid up letter for my debt councellor. I did that on the 30th. On the 7th of January 2020 I phoned again. I was told they are still busy with it...but on the automatic email received it takes 3 working days for them to respond. This was now how many days later. Still no responce. I phoned again friday the 10th of January 2020 only to hear that they are still busy with it. I phoned again this morning and now the lady in the call centre is going to forward it again to the relevant people....I have to wait 3 working days for a responce again.....in the end I have to keep on phoning for them to respond. I am very disappointed at the level of service that I got so far.