Ren-tech panel beaters in benoni destroy my vehicle

took my Volvo in to be fixed came back 2 months later paid them cash up front , when it was returned parts were ****** off it from nuts and bolts to a radiator, vehicle wouldn't turn over and i was left with the towing costs. i had even found a sanding disc in the motor. when confronting the owner i was shouted and cursed at, luckily i have video of this all and will be sharing it on social media in the next few days