Might & Magic: Duels of Champions is this a bug or bs?

So, I'm in a round atm.. I didn't lose any match yet but now, I've met this guy, so at the moment I've got 7 cards on the field, he has none, I would win in the next round, so I've ended my turn, he didn't put down any cards and the round timer went to 0 seconds, he told me he won't leave until I surrender, now he is telling me that he's gonna give me codes which I can use to get gold ingame if I surrender, lmao.. Can I do something else than waiting?