I paid a filing fee of $252 to Marshall County Clerk to file a modification to child support. All I got back was a letter stating that it was not filed, and they kept my money

I responded by asking which forms were missing, and I got no response whatsoever. How can they keep this for "filing" if nothing was ever filed? Here's a list of what I sent in: Can you help? If I have to pay AGAIN I'll be angry, but it needs to be done. I'm trying to do this myself as I live in Florida now and don't want to have to attempt to hire a lawyer over the internet.
CS10
CS41 (and I attached two years worth of tax returns)
CS47