UNACCEPTABLE SERVICE DELIVERY

My nightmare with Cell C my 2 contracts came of for upgrade. I thought this would be a seamingless process, was I wrong . I was quoted R189 p/mnth for a contract called Smartchat 1Gig post paid with a Samsung Grand Neo Plus . I accepted & the only request I gad was one in black & the other had to be white. I have all my e-mails confirming this readily available for any interrogation.I received the black cell & was told the white was unavailable. During this time I often asked to speak to Nirvana ( team leader). She failed to call. Eventually Jakes ( another team leader) called & confirmed the white cell phone was on its way. To my disbelief I received a Black one. I returned it with the courier. I then discovered I was to be charged R209 p/mnth & not R189 as confirmed in writing. I have left numerous messages telephonically & e-mails but Nirvana has not called back. Recently Sipo Sithole got involved but it seems he to is not responding. Was wrong thinking he would act on my behalf.I cannot understand something so simple is so messed up. Ironically it is through customers who keep your staff employed yet they don't see it this way. Truly fed up with Cell C