Poor service from a " Trusted Bank"

In early May 2019 i bought a vehicle over the internet. I transfered the money into the accounts. As soon as i found that it was a ********** account i immediately reported it to the bank. It was approximately 1 hour after the money was deposited. I contacted the bank and they said i have to make a case at the SAPS first. I did what they asked. The only thing the consultant just said that they wont be able to help me in any wayAnd they could not help me. The investigation is still going on. The investigation officer is still, after almost two months, waiting for the bank to give details on the wrong doers. I lost R30 000 in this whole effect. What can be done to speed up this thing. The ********* are getting further and further away and they are *****ing from people on a daily basis.