Vodacom **** WiFi

Why is Vodacom refuse to cancel my account with them it's been the whole month try to cancel Vodacom WiFi without a win. Called since the beginning on March yesterday went to Vodacom Carnival mall and they couldn't help me. Vodacom WiFi is not working for anymore,all I want get cancellation fee and stop paying for that non functioning WiFi of Vodacom. It doesn't server it's purpose. If it's not the staff that don't know anything about their service,you will be calling the whole day being transferred from one department to another without getting help we deserve. I'm so frustrated because of Vodacom poor service.