I've been going through this rubbish with argos for 3 years now! Just an application form, they never even sent me a default notice! I got a list of all correspondence etc in my subject access request and there are no letters, defaults anything listed anywhere near the default date. I keep asking them to highlight when the notice was issued and they ignore me again.
After no response to my last letter well over a year ago, I suddenly got a letter today from a new DCA (about the 10th since the hoopla began). Well the standard letter is going back, the account is in dispute and Argos are in default. I have not bothered over the last year but I've had enough and am going to be complaining about Argos to the OFT. This is nothing more than harrassment.
The thing is all I was trying to do was buy a little breathing time with them in the first place, but after the way they treated me they won't be getting a penny.