(This is in USA) I sent a 2013 iMac back to Apple's recycling agent when I purchased a new iMac, expecting to eventually get a credit on my purchase. FedEx says it arrived on June 12. I have no email acknowledging receipt by the agent. I certainly understand it will take the agent some time to test my old iMac, but it seems strange that they haven't even acknowledged receipt yet. Has anyone here used there recycling program? Is my situation normal?