Direct Merchants Bank HSBC and Direct Rewards Platinum and Account Central Payment was taken but never processed by bank carol stream , Illinois

On 9/23/2010 a payment was sent to Direct Merchants Bank credit card company.  They cashed the check but did not credit my account. In October I had a conference call between my bank and the credit card company on 10/16/2010. My bank disclosed that the credit card company cashed my check. While on the conference call with myself, my bank and the HSBC my bank was told to fax over a copy of the check to their payment research center.  I was told in 14 days  I would see a credit on my account.  I waited 30 days and checked my account online and there wasn't a credit posted.  I called Customer Service and was told to call Monday to speak with a Supervisor.  I informed them that I have limited time to call and that I would not be available to call this week.  After several minutes of being on hold and multiple request to resolve I was hung up on.