Vodacom ***** - ******* upgrade

I have an account with Vodacom with 4 cell numbers linked. I upgraded 1 package on 18/06/19. My next statement reflected 2 upgrades during June. On 12/07/19, I phoned Vodacom to find out about the second upgrade. I was told to e-mail specific information to ***. Up to today 12/08/19, I had no response from Vodacom. My latest statement shows no credit yet. How can this be acceptable??