I haven't gotten my Buffalo tik refund, but I'm not too worried about it yet. Basically I paid cash at After Dark Presents box office, and as of now their phones go to voicemail. They deal w/ E-Tix and are saying contact them for online order refunds. I'm not driving downtown to knock on their door for $20. I'm hoping later in the year they "reopen" and I can get the cash back. Same goes w/ tix for The Sword, and Uncle Acid from same place.
Got my refunds on the way for the two priciest tix I bought in March - paypal refund from Eventbrite for Primus - Tribute To Kings, and I got a check coming in the mail for King Crimson/Zappa band. Both of those have set dates for 2021, but I opted on refund. If things get "normal" by then, I'd buy again, but I wouldn't bet on it.