I have sent letter No 3 to Arden and it was received by them on the 11th June. It appears to me from looking at the forum that a lot of these companies send a letter to say enough is enough...you've got us, once they get No 3.
I haven't gotten any letters from them, but I am getting niucance calls (now four a day) and it seems like they are trying to make contact in an attempt to "talk" me out of tacit.
The calls up until the end of last week were coming in at one a day and that's when I called them (ID witheld) as representative of [MY NAME] merely to apease my partner's worry. The lady stated that there was nothing they could do as I was not the acount holder but she agreed to listen to me read the letter I attached in my last post in an effort to remind them that they were in breech of our agreement, and on conclusion of the call I politely asked the lady at the call centre if she could see that the message I had read made its way to the appropriate person(s). (she said it was not possible to record the call upon my request prior to me reading the letter)
Has anyone ever experienced persistent phone calls after receipt of letter No 3? That's what I am getting as reported by my partner because I am away working. The calls are causing her worry etc

and I feel for her in all of this just because she doesn't think it works.
Or is this one of the means they use to prevent Estoppel?
I have sent my first bill to them for £9000 :0) and a further £5000 at the start of tomorrow and I have given her the task of logging all details of calls, numbers and times etc.