old mutual/ vericred

my account was handed over to vericred. I have settled the amount on the 18 December 2018. I sent proof of payments requesting for paid up letter since December no one has bothered to sent me the letter, I went to old mutual they said the amount is not cleared yet I called vericred the said they waiting for head office. when I call head office they giving me another number. so im very much disappointed because clearly they don't know what they doing. if I do not receive the letter by 2 o'clock today I will reverse back the money in my account.