Credit card limit increase confusion

So I have been having issues with increasing my credit card limit with Fnb for my overseas trip. I did this 2 days before my trip as I remembered it was an instant process only to find that the process has changed. I completed the required questions online then I received a declaration form that said I has signed and agreed to everything. The following day I called Fnb and I was then told that they’re busy with my docs and payment will be processed within 3 days. Those 3 days have passed and nothing. Today I spoke to my team of bankers and they said no application has been processed and they sent me some docs that I have to sign and thereafter 3-5 days I’ll have the money. I told them I’m unable to do all that now because I am overseas o don’t have access to anything. I’m really disappointed in how this has been handled and the confusion and stress it has caused. Please can someone from FNB let me know what’s going on and sort it out ASAP. I am unreachable on my cell as I’m overseas and not on roaming,please communicate with me via mail.