Liquid Capital: Biggest ****mers

I have a service plan with liquid Capital, however this month they did not debit my account, so when I call in to my shock I get informed that the policy was canceled in May I enquired by who and why and the agent told me that he will refer the matter to the collections department and they will be in contact with me in 2-4 hours, 5 hours no call received, so I decided to call back in the agent I spoke to tells me that they sent SMS's in "December" and will send me proof, I never received any SMS's in December, no Email and no calls, my concern is if my policy was canceled in December why did they continue to Debit my account until May. My car is due for Service and the only response I get is that and upon asking further questions the agent Simiselo dropped the call, she couldn't even answer why the premiums continued to be debited and why the policy was only canceled in May. I am beyond frustrated and being treated unfairly and need answers from Liquid Capital how does a Service plan get canceled from 1 missed premium which they never even attempted to double deduct or try to call me and make payment arrangements for.