Give you a try again, you blew it

After my previous complaint where you were not able to upgrade my memory on my pc, i went back to get a UPS for that same PC. Walked in the store, asked the sales person for a battery back up battery supply for my PC. The respons was \we dont sell that\" ..... You could clearly see he dis not know what i was talking abt. And god behold there was 3 different types of them at the back isle. I then called the manager, think he's name was Mike. Told him of my previous experience at the store. Thats it. Done with you now. Just remember, i as one unhappy customer wont be a problem, but in my thousands can cripple a company. "