Cell C contract Stupid company with their useless coverage!!!

I took a contract with Cell C that was suppose to end July. I gave them a notice and the promised to cancel. They told me that the contract will end 1st of August due to I gave them notice in july and they told me that they'll do a debit order for the pinnacle 2GB that I'll get.. I called them today and Lerato the lady I spoke on their retention side told me that Cell C only gave me the 500MB night time data and Sms. And she also told told me that their still going to deduct next month on the 1st. Cell C should not rob us because of their financial situation. I'm gonna ask ask for advice from the Ombudsman on how to handle this matter. Stupid and useless company!!!! Just because Cell C is struggling financially their putting us on the same boat. Stupid company with their stupid slow network.