Unhappy customer

I phoned mweb to change my banking details. My services has been suspended due to non payment. I spoke to a person by the name of Waarda who said she would email my username and password, to no avail she does not send it🤷. I download the website created a new account l created a new username and password, finally i get onto the website and into the chat only for them to put me in the queue. I waited forever to be helped and finally used up all my data. Today i tried getting onto the website but it wont accept my username and password. I am an oral hygienist and have webnars coming up this week and need data. I seriously do not know what to do. Im even thinking of canceling my contract with mweb😡.