MTN DIRECT

I app**** online for a data contract. After more than a week someone eventully phone me back from *** The lady who speak with me explain a lot of things and then wants my bankaccount number. I refused to give my number over the phone because I never done this before and its not save. She also request me to email my documents to a very strange email address. Why can't MTN assist their customers like me who are deaf over email? I can't always go to a store, I stay 50km from the nearest store.