Vodacom the best con artists in the business

Today I bought 500GB data bundle with R100 of my airtime using the *111# options, whilst doing this I accidentally opted to buy another 500GB of data with R50 of my airtime. I called Vodacom an hour an a half later to query this and was told that they can not reverse the second "purchase". As far as I'm concerned this is a complete **** and goes against the the consumer protection act.

RIGHT TO CANCEL DIRECT MARKETING CONTRACTS WITHIN THE COOLING-OFF PERIOD

You are entitled to cancel agreements within the prescribed cooling-off period without incurring penalties of providing reasons for your decision. Suppliers must refund within 15 days of receiving the cancelation notice All direct marketing transactions must include a cooling off period of at least (5) Business days.