https://wgfd.wyo.gov/Regulations/Regulation-PDFs/REGULATIONS_CH44

See page 44-44. Section 26.

If you withdrew before that deadline you should have no problem with your refund.

However, if you are trying to withdraw after the deadline you will need to supply all of the requested information and wait for a ruling. You will need a very good reason (major medical situation, death, etc.) for them to agree to your refund. They are very fair in their judgement but you will need a qualifying reason and all of the documents or you will be out of luck..