Supa Quick's Bogus All Road Hazard Guarantee

I hit an object left in the road in the middle of June, so duly went to the Supa Quick in Isando on my way to work the next morning, as I've got all road hazard guarantee on my tyres. Apparently since Bridgestone/Firestone moved out of Isando, the dealerships can't process tyre claims, but the owner and manager undertook to process my claim as soon as they've been updated on the new process. I phoned during July to be told that they've still not seen a rep or technical people to update the system and it's gone all quiet again