What steps to take to change my Tier status on the sex offender registry? I strongly believe I am listed incorrectly.

What steps to take to change my Tier status on the sex offender registry? I strongly believe I am listed incorrectly.
As of 17 yrs of age I have 4 counts of possession of child pornography. Due to the new law in Missouri, I believe I should be listed as a Tier 1 offender. I am publicly listed as a Tier 3 offender. I verbally asked the sheriff office why the tier 3 status and they said it was because of “multiple” charges of child pornography. To my understanding, the new law does not state that multiple charges automatically makes me a Tier 3 offender. Possession of child pornography is classified under the Tier 1 section of the law. I have sent letters via certified mail to both the county prosecuting attorney and sheriff’s office over a month ago to request a change of my tier level status or provide an explanation as to why I am a Tier 3 but I have not received a response. My wife and I are struggling financially and cannot afford a lawyer by any means, but I will get a lawyer if I have to. Is there anything I can do to change my Tier status before needing to hire a lawyer? Thank you. – – Please correct me if my understanding is incorrect.

Justin’s Answer
This is a difficult question to answer over the internet. I would suggest contacting an attorney in your area.