Timing Belts Sliding

Good day I had my Audi 80 toothed belt changed. and now I got it again and I have compared the OT points and the nock shaft is shifted by 6 teeth so OT doesn’t fit, can something have gone cartutt? the belt has no more than 100km away. until I noticed that he doesn’t pull anymore and has no performance. I noticed that the points don’t overtune. If you drive the car you shouldn’t drive more or? mfg Blade