Beware when paying with FNB Visa card online

I used VISA card to buy tickets online from Numetro website on 25 March 2015. My order timed out so I tried a second time but was unsuccessful. On both occasions the money was deducted from my account despite Numetro sending me confirmation that both orders were unsuccessful and was credited from their side. I called FNB on 27 March and was told to fill out a dispute form. Which I did and had it reversed same day.[REF:***]<br> <br> Happy that it was sorted out so efficiently, I was shocked to find both payments totalling R2280.00 deducted again for Numetro on 02 April 2014. This time a reversal for only one payment went through same day, leaving me with R1140.00 less in my account. I was once again advised by a call agent to email a dispute form. I did this and forwarded the credits which Numetro sent to me via email.<br> <br> Yesterday, I received an sms informing me that the transaction cannot be reversed until I send the declined slip. The proof I have of it being declined is Numetro's confirmation of the unsuccessful order and the two credits, which I have attached.[REF:***]<br> <br> I was such a huge fan of FNB, now I'm so utterly disappointed!