Mondo Mobile misleading

Dealer REWND contact no.***I. I was contacted on 19.03.2015 regarding an upgrade on my current contract with more data usage, which will save me money. Instead they sold me an additional contract with an educational voucher even though I do not even have kids. When I received a sms with an TOPUp number ***, I realised they sold me an additional contract, something I specifically did not asked for. I contacted them about misleading me, first the attitude was negative, but I request they listen to the voice recordings. I have been phoning and emailing since April. On 14.4.2015, I received an email, with cancelled reference. \Please note you cancellation no collection has been submitted. Query number: 54777". The amount of then R119 and now R125 has been debited to my Vodacom account for 3 mnths"