That is kinda what I was thinking; there is a refurb 13' retina pro for the same price as the 2014 air in my specs; perhaps they would replace it with that since it is the same price
How about this: replace it yourself. As dfausty suggests, get the refund, then go place an order for that refurb MBP. That way you don't have to wait around for Apple to do it for you.
Then we'll see what issues you find with that one.