Vodacom sales and service is pathetic!

A full month hasn't yet gone by and I have another complaint with Vodacom within a different department, On Wed 1 Nov 2023 I upgraded my contract of which I agreed to 1.2gigs that needs to be loaded every month, the agent Linda that assisted me guaranteed that my request has been updated accordingly, I finished the call with Linda and immediately received a sms with the contract details, however, there was only 600MB that reflected of which I immediately contacted the call centre again and Linda was no where to be found.I left a message with Stacy of which she escalted and promised to call me back on Friday the 3rd Nov to confirm if my query had been dealt with, no call so far, I called in again and my query has once again been escalted for Linda to contact me, so lets see how long this will take until I escalte the matter to the CEO Angela Rajcoomar. This is so simple to fix, however, your customer service and sales SUCKS!!!