I was doing a web search today and ran across this little thread. I have to say, I've done business with GMSTech KC and found them to be very helpful and honest. Jason saved me a little over $200 by suggesting a different (less expensive) processor upgrade than what I was originally looking for. Most vendors would have just sold me the more expensive item instead of what I really needed.
Also, I know what he's saying about PayPal, because I've been there. I've been selling products online for two years now. (Not on eBay/GreedBay...learned my lesson with that a long time ago.) I had PayPal freeze my account due to some glitch in their system. It took me three weeks to get them to finally admit their mistake and turn it back on. I dropped PayPal shortly thereafter and haven't looked back since.
In the meantime, I had several customers go through what it sounds like the above folks went through. Unfortunately, I was at the mercy of PayPal and couldn't do anything about it. They had my funds tied up so I couldn't fulfill orders.
In closing, if you're an online seller and using PayPal, I strongly suggest looking into other payment receiving options. Despite what PayPal might like you to believe, these other methods aren't expensive and they won't kill your business by locking you out and turning your customers against you.