Very bad service

Am so dissapointed with the Nimble collection last year November i have requested the settlement letter which i receive and paid it off even today nothing has been done on my credit report it still showing that i still owe the truworths account. And to my surprice i receive an sms that the account has been handed over to DMC worse thing,i have been sending lots fo emails to them and also to FaisOmbud till today i have not received the feedback. this are the emails that i have sent Charmaine Mosalo <*** Nimble Collection Services <***>, ***, ***, ***