Appalling Service from Vodacom

As a longstanding customer of Vodacom, I am totally appalled by the service I have received to date. Almost a month after doing upgrades on 3 of my contracts with Vodacom and empty promise upon empty promise, I have still not received 1 of my handsets. Despite me advising Mahali from the complaints department at Vodacom that I will out of the country from the 16th August until the 26th August, my handset was out for delivery whilst I was in another country. He assured me i would get it before I left but still nothing. Yesterday I got an SMS saying that my contracts are coming to an end and that I would have to upgrade. I honestly don't understand how Vodacom operates. There is just no customer centricity whatsoever, and I am now convinced that although I am a longstanding paying customer, I am not valued. I would like to be contacted by Mahali urgently as this is not on.