Unauthorised sale, unable to correct their error

I recieved a call from their direct sales agent REWDC on 07/04/2016, offering me a contract deal for tablet and data. I asked for detail to be emailed to me, I do not transact by phone. Till today I've not recieved any email, but recieved sms that the application was vetted and OK'd. I spend more than an hour with various CC numbers on 08/04, with a \Palesa\" from After Sales finally updating my account with an instruction not to proceed with the \"order\". To no avail. On 13/04 a package is delivered (device i assume) and I recieve SMS confirmation that my new line has been activated. Another hour on the phone with \"help\"desk leaves me having to wait till the package is collected, then phone again to cancle. Days spent in frustration trying to undo a \"sale\" that I did not authorise. ********* and totally unprofessional. I've been a Vodacom customer for 20 years with a monthly bill with them of more than R2000. Not for much longer"