Zero customer service

With an average rating of 2.7/10 from over 20K+ clients, you would expect Standard Bank to at least try to contact their clients as promised. My query isn’t even a difficult one. I just want to know what methods I can use to pay off my student loan from outside the country. Is it possible, Yes or No???? I’ve already stated that I can not even provide my number for a phone call because I’m stuck abroad and their system refuses to take international numbers.. yet I haven’t even been sent a simple email.