Missing money from bond R5 550.50

App**** for a bound of R150000, only received R137 527.50 after attorney's fees deducted. This left R5550.50 missing from the total bond account. Tried several times @ Standard Bank Home loans to inquire what happened to the outstanding money (R5550.50) but noting. They keep saying they can't see anything wrong. Have numerous reference numbers from Standard Bank Home Loans. Standard Bank told me that it was escalated to team manager, but still no joy. I wonder can I open a theft case against Standard Bank......