Double billing

I upgraded from a Premium Red package on 3 Oct 2017 to Premium Red PLUS. 1. I got billed for the J5 that came with the package, I logged a call on 10 Nov (1- ********** ********** ). In the meantime while the back office needs time to sort this out, Vodacom phones me 9 times a day, all hours at night, because I am "in arrears". 2. I received my new INV yesterday. I was billed for Red Prem plus package for October as well as well as a red Prem plus for November. On INV number H6-5HC3G I ALREADY paid the October package. When phoning in I was told that the new INV H6-5VXPK is proRata for October. In other words, for Oct I paid R 1402.63 line rental PLUS pro rate line rental of R 1153.82. How is this possible for pay double line rentals for October. Even if it was proRata, it was 3 days in Oct, as I upgraded 3 Oct. 3. Why do I still get billed for Vodacom calls if I switched to a Red Premium plus that has unlimited calls and the same for sms's. I get billed for sms's when I thought this was unlimited as well. When logging this call I was told that I DON'T UNDERSTAND THE PRORATA INV, and IT DOESN'T HELP HE EXPLAINS TO ME, CAUSE I DON'T HEAR... THE BACKOFFICE WILL PHONE ME. Ref #1- ********** ********** . I hear that 3 days ProRate is R1490.35??? How is this possible.

I want my bill sorted out without sarcasm that I DONT UNDERSTAND. Can somebody please assist.