I had the tyres changed by mobile mechanic.Initially the mechanic didn't balance the wheels after fitting new tyres so I experienced severe vibration.Then I asked for rebalancin. However the quality of tyres were so bad that they were off shape making it impossible to balance properly even with lots of balancers.So I asked for replacement (as the mechanic also suggested) but the mechanic didn't even turn up. Now I'm trying to call but they're not picking up. I cannot even get a refund now, it's basically a scam.