Got some good news today,
After all the trouble I had with my old connection at the first house, I got to know one of the Engineers quite well. anyway I got a new job in retail and found out his wife worked at the same place and he recognised me, whenever I see him shopping I always joke around and say I have a quick question, he responds with "Oh god what now" haha.
Well I saw him again today and explained I'd move house and interleaving had kicked in on the line, most likely due to my error of pulling the cable and 3 disconnections within 24 hour.
I asked him how long it would take for DLM to f off... He just laughed and said "it could be months". He told me to unplug everything and leave it a good 20 mins and it could solve it, I said isn't that just the same as dropping the PPP session from the router and not the modem he replied, yeah but it doesn't always work with just the one.
He said what I can do is reset DLM in the morning while I'm at the exchange and asked for my telephone number, if he keeps his word and I'm sure he will, all could be sorted in the morning, even said he's going to ring me.
What a guy!