I paid £158.25 to have isolator switch installed. On booking, I was told I would have to pay a £30 penalty if I was not available when the engineer turned up. I was given a date. On a couple of occasions no one arrived, so I put in a complaint. I was told I would be paid compensation at £30 per missed visit, and my £158.25 would be returned to me. OVO apparently credited my account. I explained I wanted the money in my bank account, and was assured it would be. We are going into the third month now, and several emails have been ignored, several promises of call backs have not been fulfilled. I am living on a pension, the stress is incredible, and I am suffering mentally, unable to sleep because of frustration and worry.