Wrong answer.

There is not a credit card issuer out there that can back you up or give you back your money on "quality of service" issues.....NOT ONE! Where in any of your credit card disclosures does it state that your satisfaction with products or services purchased using this credit card is gauranteed or your money will be refunded????? NO WHERE!
Yet another "customer is never wrong" misconception......
The reason customer service has gone down the toilet is because of the customers. Plain and simple. There are rules, read them carefully, follow them and don't try to get over or find a loophole.
Also, in case you didn't notice jc, you were bamboozled and allowed it to happen. If the manager at the other store was willing to give you some BS letter, then HE should have given you your money back. That was a way to pass the buck, and you helped them do that by taking that letter and going somewhere else. It happens all the time in just about all avenues of service. One person says - you're right mr. customer, but even though I just told you that, you're not right enough for me to fix it for you. I only told you that so that you didn't yell at me and thow the f-bomb my way. Go tell the other person your story and tell them I said you're right. That will get your problem fixed. - Then as you walk away with a smile on your happy little face because you felt validated and a worthless piece of paper in your hands...they're laughing at you and feeling relieved that they could pull that one over on you!
It's up to you to be responsible. Read before you leave. If you have a problem, make sure it gets taken care of. If you leave (or hang up) and have smoke up your ass, that's your fault.
Oh, one more thing......no matter how pissed or frustrated you are...this is not the way to conduct yourself and expect to be taken seriously or as anything other than what you are acting like....
With all that being said.....
Sorry you're a knucklehead. Have a wonderful day though!