Nimble group are ****mers

Hello Peter, I need your assistance please. I had 3 short term loans with FASTA, Wonga and Finchoice . The FASTA and Wonga account were handed over to HTN Attorneys and collections for debt collection, the accounts was paid in full and paid up letters received . The FASTA account was never updated on Transunion. I received an email from a company called Nimble Group informing me that they are going to issue a Section 129. I ask in connection with what and they indicated that the Wonga account was outsourced to them, I have send the paid up letters to their customer service with no response. Now I have 2 accounts listed on Transunion under Nimble group for Wonga and Finchoice which was paid in 2020 and 2021.