I'm on zx-10r forum under ninjer with over 100 itrader feedbacks all positive as well as eBay zx10rkawboy with over 300 positive as well. I'm also the creator of the group Southeast RC racing on Facebook with well over 1k members, mostly all of whom I have raced with and know personally. Not one of them will ever say I have/had bad equipment. Most are like new or new. So there is no reason for me to intentionally sell someone a broken item.

I would have definitely considered a refund had it been a week or two after purchase. But 3 months? You're telling me you spent 300 on an item and didn’t immediately check your item to see if it works or not?