Cell C contact and response very bad

I took a new contract out with cell C and wanted to port my Vodacom number. So far so good. I, unfortunately overlooked the message from Vodacom to confirm this port request and needed to contact cell C again to re-initiate this port request. I tried their website with the live chat, waited endlessly, was eventually for ever number 1 in the line, only to be told no agent is available.. Happened 3 times. On calling 084135, a lady answered and promised to call back since my airtime was nearly finished, I gave her my confirmation number of my contract, so, she had what she needed to follow up, also my cell number. She never called back. It seems impossible to get any service of follow up from cell C... what now???