I want Pioneer debt solution to remove my name from their system hence I cancelled with them because they could even start with the process,my name appears under debt review

I regret signing with them,I wish I could turn back the hands of time…the moment I realised that they are actually a debt review I cancelled with them but my name still appears under debit review, cancelled before the date that they were supposed to make their first Debit,so I heard that there’s a cancellation fee that I must pay in order for them to remove or rather delete me from their system,I once spoke with one of their consultants over the phone,she said it was five hundred and something,so I need to know the exact amount so that I can pay it and have my name removed from DEBT REVIEW FLAG