Statutory fees must accompany an application or petition in order for it to be considered by the commission. Employees of the commission are expressly prohibited from processing any application or petition unless the proper fees are tendered. The executive director shall charge and collect for the benefit of the state the fees hereinafter provided, and it shall be his duty to make a record thereof at the time same becomes due and to render an account to the party charged therewith. Each fee is a separate charge and is in addition to other fees, unless provided otherwise.