Rush Card accepted deposit, took activation, and then suspended my card , Internet

My experiance with rush card goes like this. I had purchased a automotive part from my local parts house and had an issue with the item and returned it.

Well being a sunday and the amount being $510.88 they needed a credit card to apply the balance to.so here's where it starts getting interesting. now i give them my rush card and they conclude the transaction. Now upon recieving the copy of the credit voucher and the new reciept i was told should take a couple days. Well i call rushcard and they say yes they recieved the deposit of 510.88 but there is a hold on the card because they need verification of the transaction. well i send them everything, the original reciept, the credit voucher reciept and also go back to the merchant and get a statement from them. that was im the early part of may 2011 and i have re-faxed them everything five times since. Now I still have not had my hold taken from my card nor will they send back the transation deposit back to the merchant. Now its been going on 6 weeks and all i get is the same run around answers and told i have to fax them the same dam papers i already faxed five times prior. Now when i asked to get the corporate office number or a supervisor im told " sir.... there is no number for corporate office." Now they surely accepted the deposit transaction from that merchant and took over a five dallor fee but they are worried about the transaction. if thats the case why is it they even were able to take a activation fee from that balance if they were suspicious of the transaction. seems to me this is how they can gain money via interest off our moneys being held fraudulantly. Is there something that can be done? At this point im game for even going national news with this.