...found one of those shops situated in Laredo but operated by persons in India at the other side of the globe ? Your problem could have resulted from the mis-understood communications. For this reason, I always use e-mail.
A few months ago I purchased a Sony Cyber-shot DSC-W55 and I loved it. My youngest child dropped my camera while taking a pic and broke the lens. I called Sony & they referred me to their service facility in Laredo, Tx. I called them and what a daunting task this was, they couldn't understand me and I had to spell my last name about 8 times (not kidding). They had me ship it to their center and told me they had a repair turn-around of 7-10 days. I was told that I would receive a call from the tech. to get authorization for repairs, since I was paying for it. I didn't hear anything for about 2-3 weeks, so I called to check the status. They told me they had no record of receiving my camera. I immediately checked my UPS tracking record and it clearly stated it was sent and received by Sony. They even had the last name of the person it was delivered to at the dock. They told me they were going to do some searching and call me back. They did not. I called again and they said they found a camera with the same model as my camera, but it was purchased at a different store from mine. I explained that I had the original receipt from the store that I purchased the camera from, so this was clearly not my camera. They then stated they needed a copy of my receipt for the camera & for the shipping. I sent the records and again heard nothing. After making another call, they told me they were going to send me a new camera that was the same as the one I originally had. I just received it and surprise, it's not the same camera and I'm furious! I called them again & have demanded to get my money back for my camera & am shipping this other camera back. Beware of Sony's horrible service centers.