4th June, solicitors letter asking for £1500, redirected from my old address.
I posted my reply the following day, probably the 6/7 June 2018.
I have a copy of the letter sent.

Yes I told them when and where I had moved to.

As this was the only letter I’d ever received from them they wouldn’t have known.

Window company responded via email.
No response from the solicitors.

Thanks again!