Can't make Aura purchases from Shop

I’ve tried suggestions from others elsewhere to be sure I’m in Steam overlay and that my wallet has funds ($25 currently). When I try to purchase a 30-day aura, I get as far as the confirmation that I want to purchase (1) 30-day for $9.99, and after clicking, nothing. Have waited as long as 3 minutes with no activity. I’ve tried other cash purchases with same results.