Went to the customer service site and followed up with email, got my codes.
Have some information for anyone that's interested:
If you have more than one code (from multiple accounts), you can't use them all together to say get $45 off of Sporn. You can only use the codes one per order.
In fact, if you try reduce your shipping costs by ordering three products all on the same order, while you'll only have to pay a single shipping fee you will also only be able to use one code. Which means if you have more than one code, you're better off ordering each item separately.
Shipping costs are seven bucks, so it's as if the coupon codes are really only for eight bucks if you consider that the shipping costs for going to a bricks and mortar store are a whopping zero dollars and zero sense. Er, cents.
You can avoid the seven dollar shipping fee by doing a digital download. But there's a download fee of six bucks, so what's the point?
I didn't get a straight answer as to whether the codes will still be valid when Sims 3 comes out. I think the safest thing to do is to use those codes before they change their mind lol
So now I've gotta decide if I really wanna blow $63 for Sims: Pets, Maxis: Apartments, and EA: Going Out of Business. When chances are I'd only play them now and then and only for half a year or so until Sims 3 comes out.

Decisions, decisions...