Pathetic service and horrible app

I have signed up for a Fibre contract for my home... it's been 7 days with absolutely no contact from them. On tracking my order it says that there is no match on my address and that I need to upload a proof of address even though there is already a mweb line existing in the house from the previous owner. When I try upload a proof of address it doesn't allow me to do so and the email address that's provided does not exist "updatemyorder@web."

There's also no option to cancel my order. The app will not allow me to correct my address details and there's no one to help me! At this point I would rather just change to another internet provider!!! Service from mweb is absolutely pathetic