UPDATE - The guy is there, she has just rung, but to say he cannot fix it under the 24/7 insurance, so I spoke to him. He says it the seal on the collar which has perished and the insurance just doesn't cover for sewerage issues. He claimed bleach causes the seals to perish. I said that is absolutely ridiculous, their ad suggests they cover electrics, water leaks, drainage and etc. is not sewerage part of drainage, but he insisted not.
I rang back and asked her to ask him if he would fix it as an extra not on the insurance, and he agreed he would get the parts and do it for £60. I told her to ask him to do it and I would give her the £60 to cover it.
Whilst he was here, she asked him to take a another look at the slow draining sink, that they were supposed to have fixed last time they were here - He claimed again to have sorted it, but it made no difference to the draining, but this time he has caused the trap to leak.
Can anyone see where in the terms and conditions it says it exclude sewerage pipes?
What a complete shambles of a system.