Vodacom should be ashamed of their service and website - disgusting!

I am absolutely disgusted at the service from Vodacom. I am trying to do an upgrade online, but what a nightmare. When I log in on the App and the website, I get the following error: "There seems to be an issue with the account linked to this number. To resolve this issue, please contact 082135". When I called them, I was told that the website has been down since April. What utter *******. I did an upgrade for my mother on the App two weeks ago with no issues. There is also no information about where to send your complaint to and no-one is available to speak to. I cannot believe that a company the size of Vodacom, that deal with Technology is not able to get their ducks in a row to assist their loyal customers. Going into a store is not an option, as I do not have 6 hours to wait to be served. Honestly something should be done about this ridiculous service. The agent was also not able to e-mail a brochure to me and trying to download one from the website is an even bigger challenge. Absolutely pathetic!!!