This is silly but annoying. I’m travelling for work, my employer pays economy fares, so I’m booked in economy. Air Canada has a useful thing where you can bid online for an upgrade- so I can spend my own money for a more comfortable trip. I had an email on the way out saying they tried to take the money but the card has been declined. Rang credit card co- all fine, problem is with Air Canada. Rang Air Canada customer service- nothing they can do, suggest I cancel the bid for the return journey and bid with a different card, so I did that. Just had the same email for the return leg. I may be able to buy an upgrade at checkin but won’t know till it opens. I’m annoyed as I’m actually trying to give them some money, I think the problem is their site and I don’t know how to resolve it. Could Tweet them but I don’t suppose tweets get passed on to the technical people. Does anyone have any suggestions?