My 5th DVRs ref did eFax last Sunday, still no credit. Should he contact OC yet? I don't think they have the "15 day rule" that Gratis has, but I have also heard of very few people hearing back from OC when emailing about credit.
I've never been answered when emailing for credit(only 1 occasion thank god...so I just did another offer). Anyways, it says under the offer like "Allow 5 business days for credit" so if its been longer than that, sure send 'em an email!