Club charged us $800 'admin fee' on top of the trip cost — is this normal??

Our club is running a Gothia trip and the total cost is $3,200 per player. Fine. But then they added an $800 'club administration fee' on top. When I asked what it covers I got a vague answer about 'coordination and logistics.' Is this standard? It feels like the club is just making money off the trip. Has anyone else dealt with this?