Walmart PrePaid Visa Money Cards Would not cash THEIR own refund checks for the Visa Cards Texas

I went into this wal-mart, purchased 3 OF THE "WAL-MART PREPAID Visa cards." They never said that we were only allowed 2 cards under any 1 persons name. 2-$100., & 1-$300. I paid CASH for these cards at the Walmart 765 on Nacogdoches rd. I activated and used 1-$100. card, then when needed I activated and used the $300. card. Then when I needed it, I TRIED to activate the last $100. card, online like I was told,

the auto activations system sent me a page stating ONLY 2 cards allowed under a persons name, due to this we will be sending you a refund check for the $103., $3.00 purchase fee, you will receive it at the address listed for the card, in approx, 10 business days. Not happy, but no choice. Received the check, went to the same WAL-MART SUPERCENTER ON NACOGDOCHES TO CASH IT. The Customer service rep says, "I am sorry we don't cash those checks here, called Asst. Mgr. Santiago, he says "I don't know about those, here is BILL-THE MANAGER.

He tells me shrugs his shoulders, tells me "I don't know what you are going to do, we don't cash them, NO ONE DOES THAT WE KNOW OF, SORRY MY HANDS ARE TIED." You mean to tell me I paid YOU $103. in cash to your store for a card that says WALMART PRE PAID VISA. THE WEBSITE FOR IT IS "Walmartmoneycard.com". He says that does not mean it is associated with WAL-MART. I cannot get the refund no matter where I call, they don't seem to care or get the messege. I have called, emailed, gone to the store.
HELP.... ANYONE KNOW HOW TO CASH A CHECK FROM THE GREEN DOT CORP?

Lois ****
San Antonio, Texas
U.S.A.