Thank you, but there's no need to keep us updated on useless debt collector rubbish. The only things we, and you, need to be concerned with are a Letter of Claim (LoC) and an N1SDT Claim Form from the CNBC.
Regarding the CMA response, at least they have acknowledged your communication. All we now need to do is make sure that every PCN that we deal with on here, in particular, the ones that show blatant abuse of process by operators, is reported to the CMA so that they can build up a picture and take appropriate action.