Okay, I'd like to hear from people who KNOW eBay rules and procedures and the like... Here's the deal... I buy a power amplifier off the 'bay to run my new bass rig 'o doom (Crest CA9). I receive it and it has a problem in one channel that isn't obvious right off the bat, but which is VERY serious. The B channel distorts on certain transients, in a very speaker-bruising way. No problems feeding the EXACT same signal through the A channel. Being a less-than-seasoned eBayer, I failed to grasp the full implication of the seller's return policy as stated on the auction - "return for merchandise credit only" - I guess I thought that applied to cases of buyer's remorse or something... I took it on faith that I would be protected by eBay policies and procedures. Anyway, so the guy *seems* to be dealing with this in good faith, but is sticking to his policy. He will take the amp back, send it to Crest, or has offered me other amps he has - including a new, but lesser amp. This sucks because I am stuck without an amp for weeks on end, which may be so much spilled milk for me, but presents a very REAL problem for a gigging bassist. I am also worried about such options because it seems that if I let him send the amp out for repair and 6-8 weeks later I'm still unhappy, time will have diluted any rights I have through eBay and my Paypal buyer protection... which brings me to that... It has occurred to me that while I may possibly be screwed due to my naivete on the eBay protection, I *might* be able to pursue this through Paypal buyer protection. I don't know squat about how that works. Could I potentially get my $550 back out of the eBay deal, and induce the seller to take back the defective gear? Or will Paypal tell me to let this guy have 6-8 weeks to fix the amp before offering me any relief? One other potential kicker - The amp I received was somewhat different from the auction description. The seller included a link in the product description to the manufacturer's website that showed current specifications. The amp I received has no switch or other apparent way to bridge the amp - I'm assuming that's an older design, but an important difference. So, for those who have read this far... I'd like a knowledgeable opinion on whether I should bite the bullet and buy a second power amp, and then try to resell this one once it's fixed, or should I fight this tooth and nail (through Paypal buyer protection) and insist that the guy take it back and give me a refund despite his stated auction policy. Please... simple opinions on who's right or wrong don't really help... I need a "legal" opinion re: eBay/Paypal policies and procedures. Thanks!