I have just returned home and have looked at the tyre. It's not good.

The first thing is where the blow-out occured. It's on the inside of the tyre, i.e. facing into the car, so there is almost zero chance that this was caused by a puncture.

The second and most worrying part is that this is the only tyre that NA replaced during the fiasco! After the "major service" their mobile technician indicated that the wheel balalncing was completely incorrect on this wheel and that it had been put on the wrong way.

There is absolutely no doubt in mind now that Nationwide Autocentres are dangerous and irresponsible and I urge anyone who reads this to tell their nearest and dearest not to use this organisation.

I will be discussing the issue with the regional manager on monday. He has already agreed to come and collect the tyre given the circumstances.

I will let you know what happens.