The tyre fitting company Asda arranged to fit my new tyres was incompetent, one of the tyres was not airtight. They said Asda do not pay them enough to check this or to use sealant (which they said they would have if I had bought tyres from them directly). Background - Without me realising there was an issue after new tyres fitted the car was subsequently driven 100 miles with a slow puncture and then unbeknown to me went entirely flat for a week while we went on holiday. The wheel was front end so with engine weight over it I am concerned is will have weakened the tyre wall, sat under the weight for the week. The fitting company and Asda are both blaming each other and are both refusing to supply and fit a replacement new tyre. I want it replacing, but they refuse. If it causes an accident or worse they will be answerable! How on earth can a company that supply’s and fits tyres think it’s acceptable to fit tyres without ensuring they are airtight - it is clearly in breach of contract selling something ‘not fit for purpose’. Neither Asda nor the fitting firm see me as their customer, each saying I should sort with the other. I have waited over a week for Asda to respond to my email, and their response today shows no comprehension of the situation and with a refusal to act.