There are sometimes reasons that FFL will raise their fees.
The cost of doing business could create the raise. An informal agreement on rates with other FFL's should be the correct way to go
But to take advantage of the current situation is just greedy (or they are trying to send you to someone else).
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)