Engineer called on a Thursday said he would need to order parts. Had call saying engineer would be visiting Tuesday.To be fair he turned up on time but said he knew of nothing about part so stated lookjng for leak.After a while said boiler was beyond economic repair...this is after the other chap had said a simple 2 hour job to fix.since then NOTHING...do not answer ohone after 1 hour and 25 minutes on hold...left 2 75 year olds without heating or hot water during the coldest snap in years.Also Corgi have been servicing boiler for years and after last service we were told no issues.should be OK for years yet...Then few months later after Summer when boiler used very lightly told its a right off...After yearscof paying annual service contract feel very let down...