Contract approved but order cancelled

I was approved for a black Friday deal, it was the huawei p10 lite and huawei p9 lite both for R279.00 per month, my order went through and was processed on the 01/12/2017, every week thereafter I called the ********** number to enquire wen my devices will be delivered to me cos apparently there was no stock. I called today 02/01/2018 cos I saw on the website that there was stock of the devices and I was informed that my order was cancelled and I never cancelled my order. This is unacceptable, there should not have been an ordered processed if Vodacom didn't want the customers to get the special deals. I want to know how my ordered mysteriously got cancelled. If you look at my records you will see how many times I phoned to find out the status of my order, never to cancel it. Now I'm on the phone with a consultant waiting for the team leader to come on the line N my call is intentionally being cut. Twice I had to call back. This is the worst service I have received from Vodacom, I have numerous contracts with them and their treatment of my for this contract is abhorrent. I will not renew any of my contracts with Vodacom again and the others that I have will be cancelled. Unbelievable service