International transactions declined and no one from FNB can help?!?

In December last year I received a sms that my international card limits were changed and that I needed to contact FNB if I wanted that reversed. On 2 Jan this year I phoned the number in the sms and was told that I need to send an email. I did. Followed up with another email on the 21st of Feb, because I had had no reply. Again no reply. I thought: "Maybe they are just rude, but have processed it". Clearly not, since last week I received a sms saying "Our records show that you have exceeded the international limit authorised on your FNB Cheque Car..." and subsequently a first sms of that a R14.99 transaction was declined because of it. Went to a branch. The person said upfront that he could not really help me, but call that number and/or send an email to the same address. We called and waited for almost an hour without anybody even picking up the phone! He sent an email and as yet no response: that was a week ago now! On Monday I went to the same branch and eventually spoke to the branch manager, who also said that he could not do much, besides lodge a complaint, which is what he did. He also told me that they need to respond within 24-48 hours. They did, but just acknowledging receipt of my complaint. I am still waiting! Transactions are still being declined and soon I will go overseas and might be in big trouble... When are you going to act FNB?!?