Calling them won't do anything, the "type" of member is also irrelivent, they are getting rid of @gamer (it ends in march) so another reason for the change, they are changing it from a magazine sub (plus occasional deals) to strictly deal based with 20% discount.
The way it works is that you receive 20% off all new games, online or in store, preorders, and collectors editions as well.
Meaning that every single new release game that is usually msrp $60, you will at most pay $48+tax.
Try it right now, sign into the website, and then add a game to your cart you will see the 20% off.
I've more than tried it, I've already made the purchase (12 hours ago) while signed into my account, and no 20% off. Based on the post below yours, I'm guessing they haven't extended my account yet, and as I've already mentioned, I received no notification with coupons, etc. I've received both my order confirmation (with no 20% discount) and MyBestBuy account info (one account registered, one not) via the e-mail I have on record.
So calling them is pretty much my only option at this point if I want that 20% applied to the order. I'm in the middle of calling them right now to get the situation sorted out (from what they've told me so far, it will be done by combining the two MyBestBuy accounts, since I've made purchases on each). Sunday may not be the ideal day to do so, but at least I'm not at work and can watch the game on TV while I hold.
EDIT: They found the problem. The welcome package was sent to the (newer, started in 2011) MyBestBuy account with the GCU membership, and which had my previous address. Long story short, they linked the accounts, updated the address (apparently I wasn't able to change it online because of the older account), issued a $10 reward certificate, and resent the welcome package.
The only way I would have been able to do this is over the phone, because of the situation with the two accounts, and not being able to update the newer/GCU account online.
Thanks for the info about @Gamer. The terms of the new program seem better, and I'll try to renew for two years when I get the welcome package. After that, we'll see.
Edited by FinderKeeper, 24 November 2013 - 07:22 PM.