Has anyone experience that their final bill ammount is different from what is quoted on the Contract?

Time of Rental November 1 through November 8th
Ft lauderdale Airport

The first sign of trust was when dropping of car not a single attendant was available during 9am... Waited for ten minutes
before someone appear and the first Question can i have your Contract. Never had to produce the contract during car return.
I was told needed contract to pull up information, i offered none, and was not given a Receipt.

A day later my final was additional $9.23 and was told it a extra Recovery fee... Bummer. First time Total was not the same as the Contract.
Even if it wasn't it may have been off by maybe no more than $0.25.

Anyone experiencing anything Similar?