Coming up short.... Good service to only fail at the end!

I contacted Vodacom a couple of weeks back to cancel my contract to move to another service provider that offered a better deal. A very friendly consultant talked to me and we negotiated a suitable solution which I really appreciated. He said he’ll call me back and every time he actually did. I must say, at this stage I was highly impressed. Clearly Vodacom wants to keep me as a client! We agreed on the specific phone (P20 PRO), data, calls and SMSs at a specific fee. A second phone was added since they could not match the other company’s data deal. Then the problems started.... The “Confirmation” clerk called and the package components were not the same as we’ve discussed. I indicated that ... but she indicated - “she cannot help since the order “went out”” and that I HAD TO call another department to sort it! WHY?? Your mistake, your problem NOT MINE! I called Vodacom again, and they’ve indicated that there were addons not “visible” to the clerk - everything was in order. I could also not change the delivery site - why not? Well, I did not receive the phone model (P20 PRO) that was repeatedly stressed during our calls, nor the free SIM supposedly included and still NO email with the contract and deal information which I’ve asked twice from the clerk to ensure I got what we’ve chatted about! I’m ****ed. REALLY I am. With more than 5 calls from my side, confirmations and re-confirmation, etc. and you cannot deliver on the offer that you’ve made to me? I’m not usually a difficult client, but REALLY, you want to keep me as a customer but you cannot get it right to deliver on what we’ve agreed upon? PLEASE Vodacom - you’ve got the get the WHOLE process right. At this stage, I’m of the option that you should come and take your phones and I’ll move my business elsewhere!