Awaiting refund, that INTELLICELL does not want to pay

I am so furious with this company. Since inception of my contract, I have encountered issues. My contract was nearing its end. I notified them in December 2017. Inc December 2017, I was told its ending in January 2018. In January 2018, I was told its ended in February. February came and went....and my account was debited in March, yet NO airtime was credited to my account. I would like my R299 refund and THIS CONTRACT TO BE ENDED with immediate effect! The moment they need to refund you, they look for all sorts of excuses. Also, I have trails of emails, where consultant acknowledge me query and query but for whatsoever reason, I cannot get my refund. Stay away from INTELLICELL people!