MTN Poor Service

Cellphone Number: *** Account No: A*** Invoice No: E*** I was called by Ellie from MTN Online on the 2nd July 2019 and she informed me that I am due for an upgrade on the aforementioned data number. I did the upgrade telephonically with Ellie and my 10GB recurring internet data package was upgraded to the 20GB My MTNChoice @ R499 p/m (sim only); 40GB anytime data and 40GB night express. I was shocked when I received my aforementioned invoice with a total of R1 071-67. On the invoice I am still charged for the 10GB recurring internet as well as the 20GB. Another problem on the invoice is that I am not charged pro-rata for the 10GB for the period 17/06/2019 to 02/07/2019 and pro-rata for the 20GB for the period 02/07/2019 to 17/07/2019. Another problem is that I am not charged R499 for the 20GB My MTNChoice as per MTN's July 2019 booklet on page 21, which is the package that was selected by me and was confirmed by Ellie. I phoned MTN (135) on the 23rd July 2019 after I received my invoice and queried this. I was informed that the query was send to the billing department with reference number *** and that this will take between 48 and 72 hours to be resolved. In the mean time I also received a few sms's indicating that my query has been resolved under the following reference numbers: ***, ***, ***. I again phoned MTN (135) on the 29th July 2019 to enquire on my query "that has been resolved" and was informed that there is nothing wrong with my invoice and that I must go to a MTN store with my booklet to resolve the matter. On Monday the 29th July 2019 I then phoned MTN Head Office and spoke to Portia as the 72 hours have lapsed under reference number *** and I have not heard any feedback on this reference number. Portia then went through my invoice and said that there is definitely a problem on this invoice as I am still being charged for the 10GB recurring data which should not be the case. I am also not charged R499 for the 20GB My MTNChoice as per the July 2019 booklet. She then lodged another complaint with the billing department under reference ***. She said if I don't hear anything within 24 hours that I must phone her again and she will then sort it out. My reference for my conversation with Portia is ***. This morning (30 July 2019) at 09:10 I phoned MTN Head Office again as I have not heard anything from the billing department and was told that Portia is not available. I then spoke to who ever answered the phone and she again took all my details and said the query is still pending and I must follow up later during the day. This is absolutely unacceptable as I am waiting for seven days now for this query to be resolved and every time I phone MTN I have to speak to a new person and explain the whole issue again only to be told that a query will be lodged or I have to follow up later. They also every time say that I will receive a sms which I do but only to say that "the query has been resolved". I want this invoice to be sorted out TODAY and I want someone to phone me with the correct amount to be paid on this invoice and not send me a sms or email because this means absolutely nothing. The 10GB recurring internet must also be cancelled as from the 2nd July 2019 as I did an upgrade to the 20GB My MTNChoice. I am totally dissatisfied with the service that I have received from MTN, accept the great service from Portia! I pay a lot of money to MTN each month to use their service but I think after this issue and poor service I am going to cancel all my contracts before I upgrade them again. Danie Van Zyl ***