Useless service once again - no OTP received and costing me money over and over again

I am so tired of complaining about Standard Bank - on Hellopeter and elsewhere. I have been a customer for 30 years, but I guess that makes no difference - whether one or 30 years. I am overseas for 4 months once again and once again, I do not get OTP's sent to my email address (its no good sending an OTP to my South African cell number when I am not there). Once again, I am trying to do something online on my bank account and NO OTP is received in my email account. I have been complaining about this for the past 18 months. When I am in South Africa I complain, you phone me, pretend to do something about it with your Technical department, but once again it is no go and I cannot complete my transaction because of NO OTP. You keep on costing me money by losing losing flight bookings when the OTP does not come through, and by my paying for bus tickets TWICE when your OTP does not come through for 12 hours and I have assumed the booking failed and I then book my bus ticket with ABSA bank, which completes in 1 minute flat. I refuse to use my Standard Bank card for ANYTHING online, whether I am in South Africa or overseas. 30 years or not, I have had enough of Standard Bank. Your technical department is totally useless as far as I am concerned. PLEASE DO NOT TRY AND PHONE ME I AM NOT IN SOUTH AFRICA. Please use email if you even bother to contact me.