Poor service and any excuse to not refund a person after you have not agreed to sign up!

I received a call from discovery vitality sales department, they advised that they were running a promotion and that the vitality would be free for 3 months and thereafter only pay, i advised the agent around July/august that i was not interested and that i was not financially able to afford anything else right now, he then went on explaining that we could keep the 3 months free running and i would be contacted again afterwards, after once again i said that i am not interested, after a while i noticed that i was starting to get vitality emails but thought it was just for adverti*****t purposes, i did not receive any documents to sign or where i agreed to signing up for the vitality. The end of October i noticed receiving less on my salary and noticed that the vitality was deducted, i was not happy and gave the medical aid a call. After being sent from pillar to post the whole time and being kept on hold each time for no less than 5 minutes, i was told that there would be an investigation and that they would look into it, i was advised it would take between 5 to 7 working days, it has now already been 10 working days and there is still no feedback. I demanded a refund as i did not agree to sign up for the vitality, yet i was still deducted. i am absolutely disappointed in the medical aid and not use to this type of service