WIFI upgrade did not take place and no one is bothered to resolve the issue

My WIFI line should have been upgraded from 20GB to 40GB on 01/01/2023. This did not happen. In October, I got another call offering an upgrade from 20GB to 80GB from 01/11/2023. This did not happen. Contacting both upgrades and "the customer service" departments to speak to someone who is bothered to assist is impossible. Empty promises. Utterly disappointed and disgusted. The excuse that a third party is involved with these upgrades is frankly not my problem.....I signed up with Vodacom.....unfortunately!