After trying my first Walmart I went to the other Walmart in town which is a "neighborhood market". I told her I wanted to do $600 but in three transactions since at the other Walmart telling them $400 caused an error. I tried a 511332 MCGC which I didn't have any faith in based on the DP sheet and sure enough it failed. I asked her to run it again but for $99 instead and that also failed. I then went back to the VCG at $200 and that failed. I tried it for $99 and it went through. I ran the same card again for $99 and it went through. I then got a fail running another VCG for $99 and she said she didn't know why so I tried a separate VCG for $99 and it worked. After that I had a couple more fails with separate cards so I threw in the towel. So I got a total of $697 in today. What I found interesting is my Discover account shows the initial transaction as a $400 deposit and then it shows the other Walmart as three separate $99 deposits. I'm assuming the employees somehow did it differently which is why I had more issues at the neighborhood market than the regular Walmart?