Safety concern: repeated tyre failures, no response from branch

I have an ongoing issue with the tyres fitted by Tiger Wheel and Tyre Lifestyle to my daughter's Suzuki Swift, and I am extremely disappointed with the service.

The tyres were replaced at Lifestyle, and the very next day, on 25 July, my daughter was pulled over on her way to work by someone who noticed her tyres were flat. We phoned the branch, who asked us to bring the car in. We were told there was a problem with the valves, which they "fixed".

A few days later, the tyres were flat again. We took the car back, and were again told it was a valve issue.

This has now happened for a third time. I phoned the branch about it, and no one has phoned me back.

My daughter is now scared to drive the car because she cannot trust the tyres to hold air. This is a serious safety issue, not just an inconvenience. Given that this is the third time the same problem has occurred, I do not believe it has ever been properly diagnosed or fixed.

This is really poor customer service for a problem that should have been sorted the first time. I don't know what recourse I have at this point, whether I need to take the car for an independent inspection myself, but I expect Tiger Wheel and Tyre to take this seriously and resolve it properly.