International payment reversal

Standard bank is *********** when it comes to international payment reversals. I joined Standard bank two weeks ago and opened a Mymo account then they told me I had to download their banking app and I did all this in the hope that I will be able to make an international payment to Mozambique since the person I was sending money to has a standard bank account also. After opening the account I went back to the bank and went to the Beuraur dechange section and was shown how to make an international payment. They told me it would take 4-5 days for the recipient to receive the money. But he didn't I called the bank and they told me to call an international customer service department when I tell them what is going on they said they can't assist and that I need to send an email to *** and then after sending it they kept quiet. What exactly am I supposed to do to get my money back. I'm really disappointed 😞 😔 and frustrated at the same time! How can a whole standard bank be so ***********!! I just don't know 😕 🤷 😪