Horrible horrible service!

I'm travelling between countries, it's nearly impossible to maintain roaming... I called the call centre to have my Otp sent to my email instead of sms and I was told I can only do this in a branch?? How ridiculous is this? So basically I cannot make any transactions because I need a to go to a branch to get all this mess sorted whilst in transit..this is horrible service. I find it utterly preposterous!! I've spent a week trying to sort this out to no avail, for a bank that claims to be very convenient for it's clients. This is inconveniece at the highest level... The only way I can get my Otp changed from sms to email is only if I show up at the branch .. whilst i'm overseas? With no access to my local network...this is insane! So much for holding a prestige account!