I purchased a 15" MBP $1799 model yesterday at an Apple authorized retailer. However the glossy screen gives me a huge headache and it is very difficult to use in my lighting conditions. I have to keep tilting the screen or moving my head. I made an appointment at an Apple Store today to see if I can upgrade to the Anti Glare screen instead. I realize that costs about $150 more, but do you think they'll charge me anything on top of that to do the upgrade such as a restocking fee?