Aberdeen area deal

I have a BT service (has run for several years) but BT say they can’t find any trace of it on my number. They are managing to extract their large monthly direct debit of £26.98 and I could just cancel that, but I know how nasty BT can be and its not worth the hassle.

I have my own wired router and own email service. What I want is a reasonable 8meg service where I don’t have to pay for a phone line I hardly use and ideally a mobile service or one I can use at a second location (AB45 3JQ line in house not active) I am at 20 days of the year.

Any ideas or recommendations?