Internet Banking OTP

I have been trying to get my OTP delivery method changed since 14.1.15, sent an email to your information desk originally. My problem is that I'm currently in Canada and cannot phone or go into a branch. You have my email address on file, all I want is for the OTP to be sent to my gmail address iso my phone as I don't have roaming. I have had numerous responses, always apologising for the delays in replies, everytime with a different solution. The 2nd last email said they would reset my password and I needed to sign up again, which I accepted. Now today I received another mail from someone else asking for info etc. What is going on, I needed to make a payment to lawyers and had to get someone in SA to go pay them in cash because MY BANK cannot resolve a simple query. I need to have this changed ASAP please. I have provided you with my contact number in Canada in my numerous mails to you.