Data needed for work disappeared

I bought 10gb of LTE data today to work from home. I just did email and browsing the internet. Did no downloading, no streaming, no videos and no system updates. Wifi stopped working and when I checked on the telkom app it said I don't have any data. Also there is an issue with this app, if you try to start a chat the page doesn't load properly so you can. I tried calling and after 25min waiting without being helped I hing up there too. I went into the community forums where other people reported the same issue as me but there is no resolution there. It's the lockdown for coronavirus, we have no other way of connecting with people or doing business other than through the internet and my data goes missing and you remain uncontactable. Please help