Bad service and feedback/unfair billing

VODACOM. Please look at my rapport on Halo Peter dated 5 February this year. Since then Charnelle at the Malmesbury branch tried to contact me on the 10th of Feb.I said to her to email me any correspondence and not to phone me I am not always available and need to keep all correspondence. The 13th of Feb I've received an email from her she will be in Malmesbury the next week and will bring along the firmwear for the Mac.On the 24 th of February after Ive reminded her she send me a mail I will be in Malmesbury later the week. Send me your number so that I can phone you. (after I have told her emails only !!!) In the meantime from 5 Feb I needed to hot spot my tablet via Wi Fi to be able to do my work, since my software on my usb does not work (the issue here) . I got a huge bill from Vodacom that I refuse to pay as this matter has been prolonged. I expect Charnelle Smith to sort this out and Vodacom to reduce my bill, excluding my Wi- Fi usage. I find the service from Charnelle Smith at the Malmesbury Branch the worst I've ever experienced. All she needed to do is mail me. Please collect your software she up until now hasnt sorter out my bill.Next is going to the local papers.