HDFC Bank Credit Card — HDFC Bank not reissuing the card

Way back in December 2012 I had some unknown transactions, so I had block my card to avoid further transactions. I had to struggle for nearly 6 months with HDFC to reverse the transactions, they kept saying they are checking with merchant, one of there representative said to not pay till the dispute is resolved, but the dispute was never resolved and they kept sending me monthly bill with Late fines and taxes every month even after I explained the situation. Finally I was vexed with HDFC response and in August decided and told the HDFC that I will pay the amount and close the transaction and raise this issue with consumer court for misleading me and sending the extra fines for months. After I paid the amount HDFC resolved the dispute form and reversed the transactions, and the amount I have paid them became over-paid amount and HDFC owe me that amount. So from September-2013 I have been requesting HDFC to reissue the card so that I can use the amount I over paid them, but they have rejected the application saying there is a signature mismatch. They don't even bother to update the customer with this information. Only after I call them 2-3 weeks later to check the status they tell that the application was rejected with signature mismatch, so when I ask them what to do next? They say just re-apply with the request letter and we will process, I asked them do you need any other document to verify my signature, those dumb people only say no sir just write a letter and we will issue, after 2 more requests and rejections. I had to talk to there supervisor([protected]/[protected]) at HDFC, I had to re-tell all this story every time some one calls me or I call them. And finally they told send us a passport copy with reference number and nothing else we will process your application. As I know what's there next play, to be on safe side I sent a reissue letter for 4th time, I sent application with passport matching signature as well along with it. But still they rejected with signature mismatch. When I call them up they keep asking if i send this and that, I told them as I know about this useless company I have sent the complete set of documents which was not asked by HDFC. And as expected when I called they where asking did I send this and that document which they never mentioned to me earlier. Anyway I need to know why HDFC has rejected the application even when I send the passport copy along with my application with matching signature and with whose signature are they trying to match mine? I think there are like 15-20 reference number which was created each time I contacted them and here are couple of reference numbers Ref number: [protected], [protected] I even requested them to cancel the card in case they can't re-issue the card and send the over paid amount as cheque to the registered address. I just wanted my money back, I don't need that stupid card. How many months will a bank need to verfiy the application? Its been nearly 5 months now from my first request and every time I know the status I responded to HDFC with in a week. Only reason they keep saying is signature mismatch, even after sending them the documents. Please advice on how to handle this?