A good idea, while you can, would be to start a thread in Which ISP? (Residential)
saying what service and contract you want. There is also a Which ISP? (Business) forum but I don't know how good that is.
It would be useful in that thread if you could post the line stats from your modem or router, see here
for help, and also the link to what samknows
says about your exchange.
My broadband basic info/help site - www.robertos.me.uk
My domains,website and mail hosting - Tsohost
. Internet connection -
IDNet Home Starter Fibre.