Air time contract billing

<p>I opened an account at theku plaza and bought a few clothes and a cell phone, however the cashier activated cell phone insurance without my consent, I queried and cancelled the insurance now I found out I have some contract airtime for R282 however this airtime is not even on my phone as its for a cell c cell phone number whereas I'm using Vodacom, how can i activate cell c when I'm using Vodacom, I want the full amount that has been deducted or added on my account reversed as I didn't sign up for any airtime, also would like to get the phone number benefiting from this airtime to be investigated as this looks like its the staff at theku plaza usingour details to get airtime</p>