Worst service ever!

I logged a *****ulent transactions complaint with them on the 15th and by the 19th there was a message sent to me that they tried to contact me and that my dispute was unsuccessful. My dispute was 100% legit and I had enough evidence to provide. I called the call centre and the lady that assisted couldn't provide any info as to why it was unsuccessful and basically told me the bank couldn't do anything and that I should take theatter up civilly.