One thing to look at is where at the J-bend the spokes breaking. Is it right at the hub? It could be a possibility the holes in the hub weren’t chamfered. I’d call WTB and see if they’d give you a replacement under warranty. Then ride it for a day or two. Then I’d tension the spokes. But I’ve built wheels so you may just find a local wheel builder or a shop to check it. You saved some money on mail order so unless you know how give some support to your local bike shop.