Terrible service

I cancelled my policy on August and was informed that the last debit would be end September. When i viewed my Telkom invoice I noticed there's still a billing for the insurance policy which I cancelled. I tried to contact the consultant that was assisting me via email but he didn't not respond. After numerous emails that i sent daily seeking for assistance he rep**** with " Please note we have sent your policy to Telkom to cancel and we are currently waiting for them to advise if its been cancelled." I asked him 7 days ago to send me Telkom's contact details so that i can personally find out what's the delay and why I'm still paying for services that i cancelled. Til today the guy hasn't responded.