Yes, the check was cashed within a week of mailing it.
They called me Monday. Well, the woman called me Monday and said she couldn't make out my last name on the message I left and said they sent out a lot of renewals on Monday and mine might be in the mail. Well it wasn't. Luckily, I have a friend that works in the office that processes the CCDW permits (they don't interact with the permits though) and I contacted them and asked them to look into it.
When I applied for the permit initially I took a long time to get everything together and the SBI check went stale (30+ days old I believe is stale) before I mailed it in. Well they never called me and told me any of that. They DID cash the check. They pushed my permit application to a folder under their desk and never contacted me. Every time I called they said they were just backed up and it was being worked on. This went on for 6 months. I had my friend look into it and they discovered what had happened. Essentially nothing was happening with it unless I had known someone on the inside. This was more of a rant, sorry for that, but I figured I would share my experience.