So you don't actually want a refund?
In that case until the draw for the League Cup is made AND we know if fans will be allowed to attend AND we know if we got a home draw, what would you like the club to tell you right now?
What has the league cup got to do with anything?
Ideally I would like the club to tell me that the 'credit for a European game in the same stand/price band' that I opted for but now can't be fulfilled can now either be refunded or transferred to a 'credit for a Premier League game in the same price band and if not available price difference will be paid/refunded' but any information would do.