Vodacom *******

After taking a contract with Vodacom, I was not satisfied with the package and phoned to have it returned, as per the 'return within 7 days policy'. The phone and sim card was collected the next day. In 2015 I discovered I was being billed for the product that I never took. A call was logged to after service, they checked as saw that the phone was indeed received back and the sim card never activated, still today I'm being billed after numerous phone calls from 2015 till today. On the 5th of April 2018 I spoke to another operator, confirmed that the phone and sim card was returned, that I was wrongfully billed and that I will be paid back within 7 to 14 working days. Till today I have not received a cent back. After phoning several times since last week where I was promised to be phoned back, which they never did, or they could not find anything on the system or putting me through person to person at various departments still not having any resolution. Not acceptable at all. At one point I was told today that I should have cancelled the contract in 2016 .... why I ask if I never never activated the sim card and returned the product with in my rights, why pay for something that I never had in the first place.