Amazon gift card rewards are back!

Yeah, I was excited to see an email that they were available again (all the other "rewards" are basically useless to me). I tried to redeem for one, it said it was successful and would be emailed. Nothing ever arrived and I kind of forgot about it until they sent an update about how man points I have. It still showed the same amount, like I had not redeemed any. I went back and the $50 certificate was showing "sold out". I tried again a couple days ago, like the first time, showed it was ordered and would come in my email. Once again, nothing came. So I have just been on the chat for the past half hour with Telus Support. First the guy tells me I have to contact Amazon. How is that going to help? My rewards account shows nothing was redeemed, how is Amazon going to help with that? Oh, okay, he looks into it some more and comes back and says "this kind of gift cards that we have are a limited gift card per day so that mean that the time that you try at that time is no available gift card so you have to do this early in the morning to get your $50 gift card" I said but the system said it was successful - if this is the case, why wouldn't it show an error instead of leaving you thinking the gift card was coming?  He said "maybe someone else was ordering at the same times as you" Again, seriously? This is ecommerce 101 - if you have a certain amount to "sell" the system shouldn't allow more orders than that to be placed... He said he is opening a ticket for tech support to make this happen....  As a consolation prize, he did give me some video coupons...