Order a Tab - followed up to be told its out of stock, changed order and again, out of stock!!

I app**** for a Alcatel 10 inch Tab on monday 01 Jan 2018. I called on Wednesday to follow up and find out what is happening. I was told that the Tab is out of stock and they wont be getting any more. Crazy, why advertise something which you dont have stock of, and wont be getting more stock of! I asked what other Tab is available on a similar contract, I was told I could get a Huawei T3 10. I accepted the new price etc, and I has to send through payslips, bank statement and ID. Sent this through, and everything was finalized on Thursday 04 Jan 2018, I was told delivery would take place from Friday 5 Jan 2018. Called on monday 08 Jan to follow up, I was told it is out of stock and they will get more stock in a week or two. Called again today to see if anything has happened, and I was told they dont know IF or WHEN they will get stock again. I told them this is ridiculous, why was I not told this when I app**** for it! I was told I could try going into one of the Vodacom shops to see if they have stock. I called around, Canal Walk has stock, but they only have it on a R199 contract when the contract I was offered was for R149. Shocking customer service, why should I, as the customer have to keep following up if or when I will receive my Tab??? And then I must drive around or phone looking for a place that has stock. Vodacom clearly does not care about their customers anymore, and they obviously dont need new customers anymore!!