Disappointed yet again with VODACOMS lack of OR NO service

I contacted vodacom to attend to my upgrade only to be told I’m not eligible for an upgrade as yet, after speaking to approximately 3 people did vodacom only attend to having a request submitted to rectify the dates in which my upgrade is due. I then contact vodacom again on the 1 March 2019 as dates had been rectified; however, seems my profile has been amended / changed for some strange reason unbeknown to me or vodacom upgrades consultant. The consultant assumed it was because I did not have a debit order in place, But paid them via EFT ( why should that affect / deflate my profile since I pay my account every month WAY BEFORE the 1st of the month). Never have I ever skipped a payment!! I then was told the matter needed to be referred to a different department for them to review and rectify my profile so that I can do the upgrade. Since the 1st March 2019 vodacom has not contacted me, I have been contacting them every 2nd day and when it reached 4 days I asked the consultant why it was taking so long as I was advised it would be a 3 day turnaround and the consultant advised me “I just have to wait for the query to be attended even if it’s passed 3 days”. Currently, the device I have is faulty (no fault of mine BUT seems iPhone 6 has been discontinued as the phone cannot do certain upgrades which causes issues on the phone (of which vodacom who has sold the phone to customers will not provide us as customers with cash back FOR the inconvenience caused with the device they’ve sold) hence, my urgency to upgrade. Even with this knowledge or vodacom being advised of the above they are still complacent in me calling in every day /or second day with no service or feedback. I am at my wits end with vodacom at this stage. The call center staff seem uninterested in assisting where queries are requested to be logged and to top it off they cut the call on you while talking and do not call back which means the customer is then again left to call yet again hold on and go through the whole process of explanation to someone new. Vodacom never ceases to amaze me on how they have No customer service or value for the client. Number in question is ********** 068