Sooooooo annoying!

Can I tell you a very annoying, frustrating tale? Thank you. I'm part of Disney Movie Rewards (and if you buy a lot of Disney movies, you should be too!), and they sent me a $10 off the Fantasia/Fantasia 2000 blu-ray & dvd combo pack, which would be great because that would bring the price down from about $30 to about $20. So I wanted to go get it yesterday, but the website was down or something because it wouldn't let me log in to get the coupon or anything. I tried logging on on a different computer and restarting my computer. No effect. I changed my password and tried to log in (therefore I was even MORE sure that my password was right), no luck. So I waited and tried again later in the day and it worked (on my parent's computer, not mine then. I'm not sure why...). SO today, I decided to go get it. First I went to Target. They had the DVD version, but not the blu-ray/dvd combo that my coupon is for. Then I went to Wal-Mart: same story. Then I went to Costco and they had it! Unfortunately, after getting to the front of the line and everything, the cashier tells me that they don't take manufacterer's coupons. Seriously. What a saga. And the bizarre thing? I have never seen this movie, know very few people who like it, and have heard that it's one of the most boring Disney movies ever. So aaaaaaaaaaaall that for Fantasia. Seriously. In the future, I'm only going through this trouble for a movie that I really want (I wanted this one because it's going to go in the vault and should I want to see it in the future, it would be difficult to get). [insert me looking frustrated]