will not let me check out for the last week!

Ready to take my buisness elsewhere. I have been a very faithful customer to walmart.com and problems like this makes me so mad. Over 5 things that I have put into my cart had went out of stock within the last week...Very dissapointing. Hire better techs to reslove these issues. Should not take a week to fix, especially with a HUGE coportation like this!!!