When you receive outstanding service, like your experience with EVGA try and look at it as an atypical event. That's why it was outstanding. Regarding RMA's I would give it 14 business days from the time they receive the item before you start applying pressure such as inquiries, complaints etc. 14 business days is almost 3 weeks, and is usually a full 3 weeks since you shipped it too them.
3 weeks gives you a bit of leverage. You've been patient as a consumer and anyone should expect an update at that point.
