OTP issues

<p>I live and travel in between countries and thus do not have a cellphone number which remains the same. My primary OTP is set to my email. Yet when I try to purchase my visas or plain tickets online, a confirmation pops up saying that my OTP will be sent to my cellphone number. I never recieve my OTP and can thus not complete my purchases. I have been to the bank more than once to try and rectify this. Even at one of the main branches I was made to sit and try and speak to several FNB sections over the phone (which I could've done from home). This problem has lasted two years for me and has lead to some very inconvenient situations where I've had to ask other people to make large purchases on my behalf. </p>