Dusk

The ChiTel international calls card is behaving weird. I tried to call my parents, and it made a ding sounds, so I tried again, and since then every time it says "the card number you entered is currently being used". How the hell it can be used if I'm the only person who uses it? It never happened before, and I have no idea what it means. I need to make a call today and another tomorrow morning, and I can only hope the problem will solve itself. Their helpdesk is closed, of course. Bloody stupid card. Dunno what to do, will see how it goes.