Then Epson is changing the definition of what RMA means. An order number is not an RMA number. Depending on where you purchased the projector, you'll have different schemes for order numbers.
Epson should provide the RMA number when they authorize the return.
Now, if the box in question contained the replacement projector, then what Epson placed on the box as the order number could easily be their RMA number.
But I can't tell from conan48's posting if he is returning his original PJ, without first getting a replacement, or he received the replacement and is now returning the bad one. If the later, then there is no need to talk to Epson, just pack up the bad one and send it back in the box the replacement was received in.
Am I as confused as conan48, or what?