What is Apple's normal process for repairs and exchanges? My RMBP has developed a very interesting and annoying chassis squeak. After going to the store and then calling Applecare, they were very interested in my machine (spent 30 min on the phone with them, they asked me to send in a video fo the problem) and it's slated to be shipped back to the engineers in Cupertino for an early field failure analysis. I got the email from FedEx today and it turns out I need to return my machine first before a new one gets sent out. I call AppleCare again today and spoke with a 'senior advisor' who said that this is correct and he had no idea how long it would take to get a new machine sent out since inventory is constrained and my RMBP is BTO. He could give me no concrete date of when I'd receive a replacement. Basically I'm at a stalemate now because this is my only and primary machine and Apple refuses to send out a replacement first. This is Apple's manufacturing defect and yet they expect me to be laptop-less for an undetermined period of time. I've had much better experiences with Dell's customer service then this... What's the best course of action here to get my issue resolved?