No advice here but bummer! Sorry to hear what happened to you. I understand at the time going to one of these places but if i don't go to the dealership (probably won't much any more) than i do my own service especially fluid changes. I've had my bike for over 4 years and never let the dealership (Yamaha) touch my bike. I've done lots of stuff to my bike and refuse to go to the dealership for even the easiest of jobs simply cuz i don't trust most of them. Most of these quick oil changing places have over zealous, incompetent idiots who really don't know what there doing. I've heard horror stories like them forgetting to tighten the drain plug, or putting the wrong oil, fluid in. Then when something happens they usually deny causing the problem. I've checked junk yards online such as www.car-parts.com/ for transmissions and craig's list and they are pretty cheap considering. If you can get an honest shop you trust or friend you can change out your transmission in usually a day. Good luck and sorry to hear this.