Here's my experience....
Went to LS Shangri-la sometime in December of last year as I wanted to get a universal mounting bracket for my newly purchased projector. I had previously called two other stores, LS Megamall and Theaterworks Trinoma and both have priced the mount at P2.5k. But because I stay in the Mandaluyong area, the best choices for me were Megamall or Shangri-la. And since we all know that parking in Megamall is always a nightmare, especially in the Xmas season, I opted to go to LS Shangri-la. With the thought that the Shang branch being a Listening Group member also, I didn't bother to call anymore to inquire about the price. I was surprised when upon inquiring at the Shang branch, I was informed that the price was 5K. The same item for double the price? It didn't make any sense to me. I told them that I'm a Pinoy DVD member and that Trinoma and Megamall were giving it to me for 2.5K. Then without saying a word to me, they began to install the bracket. I thought they did this because they agreed to the price that was quoted to me by the 2 other branches. But when they finished installing, they still insisted on the price of 5K. They really didn't want to bring the price down so I had it un-installed. I then decided to call Minnie of LS Megamall and relayed what happened to her. She was quick to assist me and told me that she will have somebody bring the bracket to where my car was parked in Shangri-la so I wouldn't have to move anymore. The transaction was done from where I was and I didn't even have to go to Megamall anymore.
Just sharing my experience with the Shang branch. Now whenever I need anything, I just deal with either Belen of Theaterworks and Minnie of Megamall.