Standard Bank Mobile

I've been charged more than what I signed up for two consecutive on the Standard Bank Mobile platform. I've tried contacting them by filling the form on their page and calling them but to no avail. I have tried logging into the website to find out why I'm being charged extra, but I am unable to even reset my password because there seems to be a bug in the system. When I try calling, I am kept on hold forever. I can't seem to reach through to the mobile offerings team.