By way of update...
Brought the car to FastFit in Coolmine (no connection) expecting to have to pay up for a new tyre.
Thet took off the tyre, checked it, it had a large nail in it, took it out, repaired the tyre and I'm back in business.
I was told had the tyre deflated fully and I used the repair kit - aerosol can, I would have needed a new one.
So far so good