When will a resign bonus be paid?

Hello, I’m not in the Military but my spouse is in the National Guard. He’s been in for six years and some months. He resigned for six more years for $20,000 but he was supposed to get half within 30-90 days he says. This was around June 2018. He hasn’t received any money at all. He had to do a PT test, get his weight and all to qualify and he passed everything. His unit doesn’t give much information. The only thing they told him was that some system is down. I came across this site on google and decided to give it a try. I’m hoping to get more than just “The system is down” kind of answers. I mean, he’s been getting told the same thing every month. Is there a specified date on when it’ll be fixed? Just a little something more logical or a more direct answer would put our family at ease. That kind of money would definitely help out us two and our little girl get to where we need to be. Thank you!