Contract/Data credit

I upgraded my contract last year around the 13th December 2019, the SEQ NO:UV***, Dealer Code: 424289, Acc No:***. the Deal was a My MTNChoice 5GB for a Lenovo L340 Notebook which comes with Backpack, headset and mouse. so the thing is when I toke the upgrade it said the deal comes with Mega 40Gig data which is 20Gig during the day and 20Gig night plus a once off 40Gig but all I have been getting is only 20 gig of data, 10 gig during the day and 10 gig at night. I have been logging call since January 2020 for the mistake to be rectified but instead they have been resolving my calls without fixing the problem. I have even escalated via twitter and through the MTN app but still my problem is not fixed. below is the recent email I have got saying my problem has been fixed but its not. From: Customer Care <***> Sent: Monday, 29 June 2020 3:47 PM To: MAKGATO, MATOME <***> Subject: RE: Contact us Query Contract Enquiry [#***] Good day Sir/Madam, Thank you for emailing Customer Care. Apologies for the delayed response and for any inconvenience caused. Please note according to our records this has been resolved Yello,Issue logged against Siebel Ticket: *** is resolved and the latest Siebel Ticket details are as follows:Activity#: ***Resolver Group: System Support - 1st LineDescription: Affected Customer: Reported By: Nkabinde RefiloeThank You We hope you find this in order. We thank you for your continued support. Kind Regards, Faith Skhosana MTN SA Reference Number: ***

can you please guys fix this problem cause its frustrating me right now cause I have to keep topping up my data because of you guys. please not I cant keep paying for this contract till you fix the problem.