recieved debit card for xmas, had $30.00 in it have not used it until today. account says i have no money in it. never used it and now i have no money in. never buy a debit card from Walmart, it is a rip off

I put $1000.00 in my walmart debit card on 12/10/08 .
#1: they say that there is no charge if u dep 1000 or more & they chrgd me 4.64????????????
#2: on 12/12/08 there is a charge of $214.16 from barnes & noble I think. The person I got through to had bad accent and was very hard to understand. She said to call barnes & noble. called them & they said to call her back. she said the $214.16 hasn't come out of my acct yet and to write a letter to po box 1187 marovia, calif 91017, and explain situation and that i do not want it to come out of my acct and to sign it. i have never been to a barnes & noble in person or online. what should i do? I went down and pulled out all but 60.00 from my acct which cost 3.50 plus 3.50 and another 2.00 sc just to talk to walmart customer service who i couldn't even understand. what is going on? i no longer trust walmart debit cards. will probably close it out.