VODACOM is still doing nothing

It is very disappointing that VODACOM makes people take up contracts with them knowing that they do not have enough stock ,I went to VODACOM The Glen on BLACKFRIDAY 2017/11/24 and I took up a contract which was on the black Friday promotion for a p9lite plus a p10lite for R250.00 Reference Number: ********** 1 for which I was approved and told to come in the following week on Wednesday to collect the phones because they were out of stock however to my surprise when got there l was told that they have cancelled the contract because this offer was valid for black Friday only ,Why did they still do the contract knowing that I was not going to get the phone I could have gone to other service providers but no they just had to give me false hope and know I am struck with no favourable option had they at least called me or told me I would have made provision to get a black friday deal else where the most upsetting part is they waited for me to come in store instead of contacting me and I logged it with hello peter they said they would get back to me till date they haven't. and yet they have phones on display but are refusing to give me at the same price as if it was my fault that they didn't have stock and this is the second time am writing this review and nothing is being done