Tao motor bull 200cc

I just got it late March rode it 3 times. I paid about 2200 for it but I'm asking 1500 Reason why Because only had it for 3 weeks plus the only thing wrong is the power bottom to start up when you turn the key it come on and everything it just the power bottom mess up and the company warranty mechanic have to change it which is a quick fix it just he been busy working on other people bikes and haven't have time to fix mine It still have 6 months Warranty on the bike