debit card problem and refusing to understand.

Last year I went to Uruguay and I told the bank that I will be using both my credit and debit card in Uruguay from the 16-23 August 2014. The cards were activated but my debit card did not allow me to swipe. Luckily I also activated my credit cards. Just recently, I went to standard bank forex department to make a transfer to france. I went with summary of registration for the congress and an e-mail which had all the details but the people there told me that they wanted an invoice that will state exactly what I am going to attend. I communicated with the congress organisers who sent me a pro-forma invoice, on top it stated exactly what I am going to attend and the dates, and it had all my details and their details and the amount I have to pay in euros. When I got there I was told that \the document doesn't talk to us