"Feel free" is an expression in English, it has nothing to do with costs, prices, or anything for free. it means please feel welcome without any impediments, and is used in specific connotations.


>>Not sure what you mean.
>
>From afar it sounded like you were offering a freebie.
>
>>>>Old home week! Look forward to seeing you in AZ. Feel free to signup for my precon . . . . . . . .
>>>
>>>You said "free" and "my precon" in the same sentence... was that a hint? :)