No explanation or Feedback on deals advertised in their booklet

Hi. On the 1st of August 2017 i went into a MTN store to upgrade my contract. Scanned through the deals and saw a deal on the Samsung S8 that I liked. Included in this deal is a Samsung Tablet Active. I asked the guy at the counter to put it all through and so he did. He then came back to me to say that he cannot do the deal as they do not have stock of the tablet that was advertised in their booklet. He could however order it for which it shall not take longer then 2 days. It is the 21st of August today and yet I have not yet received my phone, tablet or any type of feedback from MTN as to what is going. I have gone into the shop numerous times and all the sales rep can tell me is that he has no information as to what is going on or when I will receive my goods. on the 12th August 2017 I took it upon myself to phone MTN regional offices and spoke to a lady called Ricky (Apparently MTN Regional Manager). She advised me that it will be delivered by the 15 August 2017 . By the 17th August I have had no correspondence from her in any regard and decided to give her another call for which she said they they are having a meeting about the whole situation and would get back to me as soon as she had any answers. Up until today I have never had a call, sms or anything from Ricky or MTN as to why I can still not get my phone. This is in the highest regard the worst customer service I have ever seen. I have been with MTN for more the 3 years is this is totally pathetic how I have been treated as a customer. I NEED ANSWERS ASAP!!!