BANK CAN'T TRACE MY MONEY

It's almost Christmas now, from the 19 November 2015 I have been struggling to get Standard Bank to reverse my money after making a payment of R2000 to a Service provider and the money didn't reflect on the service provider's account till today, but it went of my account. Standard bank has been saying they are busy escalating the matter till today they are still escalating the matter, sending me from pillar to post. They are still busy checking suspense account until this moment. I hate Standard bank especially because i really really need to use that money, i am desperate and I don't know what to do anymore, I have been to their branches and they still played me. If any one can please please advice me how to deal with this matter, as I desperately need that money.