I thought that refunds for postponements had always been up to the promoter rather than Ticketmaster and that you wouldn’t ever guarantee to get the cash back. Obviously promoters tended to be fine to do this as they knew the tickets would likely still be bought up. I’m not really surprised to see them refusing it now.
There’s a silver lining here, though: there are right now presumably a bunch of touts with large sums of money tied up in tickets to events they can’t shift and can’t get refunded… Maybe some of them will really really suffer, the despicable pieces of shit…