Horrible service

I have 2 accounts paid up in July through the nimble group. I was told y their agents that it will take 21 working days for the paid up accounts to be updated with the credit bureau. Till now, the paid up accounts still appear on my credit report and I have been calling their agents who cannot answer me as to why they are not sending through my info to the credit bureaus to be updated. I have called numerous times to get through to even a manager to no success. These collectors are only good at chowing your money and give you a plate of **** in return. I am very appalled by their service!!