Following an advisory on vehicles MOT on Mid Oct and a puncture on the offside rear at the end of Oct, booked the vehicle in Mid Nov for 4x Primacy 4’s. Had absolutely no problems with the tyres or rims up to the booking. Only time the low pressure warning light had come on was when the puncture happened. RAC came out repaired puncture & checked rest of tyres whilst there. Upon arrival at the Dorchester National Tyres & Autocare, I was challenged as to why I hadn’t purchased run-flats, then why hadn’t I purchased a spare. I was offered “free tracking check” but it would cost £30 if it was out by 0.01 When told that I had wear on the tyres I said I knew (hence getting them changed!). The roller door was lowered in my face after being told that the person had 25 years in the business & I didn’t. Short while after sitting in reception was told that the offside front and near side rear rims were cracked and that my new tyres would be flat within minutes if I didn’t get them repaired. I questioned this as the car had been perfectly fine up to that appointment. I live on a farm, my vehicle is rarely clean. When the employee came back with rim & tire to show me, the crack was white, clean and new. He then proceeded to tell me the dust in the tire was a result of the crack. When I pointed out to him that the tire he had was on the offside rear and the dust was the result of the puncture repair. He became defensive & argumentative and vanished off round the back with the rim & tire. After another short while he came back into reception and said he tried to put some paste on the rims. Needless to say I was not happy at all. They put the cracked rims on the rear of the car, set the tire pressure to 60 PSI and I was sent on my merry way home (15 mile journey). I had to stop 4 times to re-inflate the rear tyres. My car is now sat at home with four brand new Michelin Primacy 4’s, two of which are flat as a pancake due to the damage maliciously caused by the Dorchester branch. I am remote, I rely heavily on a vehicle to go anywhere, shops, doctors etc. I never received the “free tracking check”, as it seems they wanted me to fork out for new rims due to the damage they deliberately caused whilst my car was in their custody, which was a large pay check than the £30. AVOID AT ALL COSTS.