FNB - shockingly bad - non resident account

At the beginning of July 2019 I departed with my 3 year old child for our 5 weeks vacation in Europe. We were looking forward to this for almost a year. I bank with FNB and have a non-resident account. Opening it and overall management has been somehow of a poor quality but I accepted it as I understand that I no longer live in Europe and the quality of banking in SA is not the best. Before our trip, I called the bank and notified them of my travel, I wanted to make sure that I will be able to use my card while abroad. I was ensured that they put a not on their system, and that next time I can just use the FNB app. As far as I was concerned, all was good to go. While I lived in Europe, I travelled extensively all around the world so was used to dealing with my bank when it come to such requests. How shocked I was when I landed and was unable to use my card, use ATM! I was with no cash! I called my husband who called FNB from SA.. he was advised that I could change my card limit in my app. This of course did not work. I went to Europe to travel, to have some dentistry work done, I booked accommodation, all with 3 year old child. This trip has turned to be a worse than a nightmare. I had to borrow money, reduce planned dentistry work, I was unable to buy anything that I could pay for. My husband asked FNB to contact me, they never did. When I returned to SA, I have submitted a complaint. NOBODY at any point at the FNB branch or over the phone mentioned I was not allowed to use my bank card overseas as I had a non-res account! My complain was resolved by telling me to call FNcard limits desk as they reduced my international limit. Really?? when?? why?? how?? SO I did call. I was met with an angry agent that I was calling the wrong number and he had nothing to do with my case. He put my through a number that only had answer machine. FNB, I understand that I only have non-res account, but I have it until I become a resident in SA. Has that not occurred to anyone? Major mistakes were made by the FNB staff on number of occasions and no responsibility taken. And that has to change!