In case anyone is having the same problem I did... an update:
I just received an email from edo. They have loaded on one of my cards 3 of the Coke wins I have been waiting for. I just checked the balance and it is now $75. :headbang:
The oldest one was from a few months ago, but better late than never. I can say that although it was a bit of a pain, the people at edo were all very courteous and tried to help the best they could.
I am now waiting on two, but they are both fairly recent wins and one other is an issue with Coke, not edo (the redemption code that they sent is not being recognized).
My best advice to anyone experiencing this same issue (and judging from the pm's I'd say that's a lot of you):
Email and call. Have both your redemption code from Coke and your card number handy. Be polite and patient... they will take care of it, but it takes some time because most of the people manning the phones aren't able to take care of it themselves. They have to pass it along up the chain until it reaches someone who can. Don't be a pest about it, though I understand the temptation... believe me!
Good Luck!