Tired of nimble group

Im so disappointed with this company Ive been calling them for the whole month of December for them to update my account I paid ABSA credit card which was handed over to them I used I'd no. As a reference now when I m calling them they are saying they do not have access to the account it back with ABSA but I paid even before this account was taken back to ABSA their consultant s are rude called ABSA they said money was paid to standard bank their account really what to do now I'm confused