Bad customer service agents

I bought a machine at Russells tembisa plaza on the 6 may 2021 it stopped working on the 10th December,. I reported on the 13th December to Russell's Phumlani mall as the branch in tembisa plaza is no more.

I called numerous times for feed back since they told me they will log a call to defy technician. No1 called me from the shop or Defy. On the 30th December I was told no call was logged by the shop the call center agent at Russells said she will log the call then on the 4th January I called to be told defy is handling my case never heard from deft or Russell's since . I called on the 13th and was told my machine was supposed to be fixed on the 8th they don't know why it hasn't been done.

Please help. How to I get out of the 36 month contract with Russell and how do I stop them from debiting my account as this will be the second debit without a fictional machine