Dear sir/madam,

I am writing to highlight a possible glitch in your payment platform. I have tried three times to register using two different cards (one in gbp, one in eur), but I was not able to finalise the payment in any way. 

I will try again in a few hours and, in case that did not work, also tomorrow.

Andrea Mina and Martina Iori have managed to register, so there should be no problems with the processing of the paper.

My best wishes,