I have been with Plusnet for years and never had a problem. Three months ago I moved so used them to provide my landline plus telephone as well. I was promised a service on June 8th. On that day a man from Openreach appeared and tested the existing line to my new premises - which hadn't been used for 5 years. He had problems as some exchange equipment proved faulty. My telephone and broadband service was established after a further 3 days and several more visits from the Openreach man. The last time broadband was supplied to my premises, according to the previous owner, it took BT about 6 weeks to supply it after they said they could!
At least Plusnet know who to contact at BT to get things done.
P.P.