Bad service

I have took the policy on the 23rd July and cancelled it on the 10th August in writing. I have noticed that the policy is not cancelled because on the 10th August I took the policy with iwyze because old mutual wanted R1050,00 R117, 00 and R1300, 00 on the 15th of August so I wrote email to them that I will be liable to pro-rata fees that they have covered me with because that money is day light roberry and only knew that the the want us to R10050 after the policy was taken. And if old mutual do not advise me on how it I'm liable to pay them all that more than R3000, 00 will be reversed. On my old mutual app the cancelled policy is still active. I got the email on the 11th August from ominsure asking me the reason to cancel the policy which I did not respond to them because my answer was not going to be nice because is a day light ******* of three amounts in less than 18 days. So if someone did not do his /her work regarding to the cancellation is not my problem. But I will not allow unfair services from ominsure. ***