Poor service

Against my better judgement, I signed up with The Unlimited last year. A month or so later, I lodged a claim to repair my mags. I got the quotes done but when I wanted to do the repair at the beginning of the year, the repairers refused to do work for The Unlimited. I then cancelled the claim and lodged a new claim for a bumper repair and accepted to pay the additional amount over the R3000 limit per repair. The issue now is that The Unlimited is not getting back to me, neither can I get hold of them, to confirm that the claim is authorised. I've given them premiums for a few months so I do want to get a repair done under the cover.