You have to be very careful with that from now on. I’m not sure if it was BA or VS he was talking about, my boss has found out when booking his next trip that the airline was changing its terms and conditions and that anyone who failed to honour the return leg of their trip would from now on be charged for the price of a single ticket- i.e. they’ll charge your credit card for the difference.
I’ll try to find out which airline he was referring to.
In which case, you’ll need to book a return trip and turn up at the airport 5 minutes before departure, hoping to check in. “Bugger”, you’re too late, so it looks like you’re not going anywhere.