Sherman Volunteer Fire Department is cautioning residents to phone calls asking for donations.  Anyone receiving a call for donations to the Firefighters Support Alliance are being cautioned that these contributions do not go directly to any local fire departments.  The organization is a lobbyist for legislation and referendums geared towards keeping firefighters safe.  Contributions are non-charitable and not tax deductible.  Sherman Volunteer Fire officials say while legislation supporting firefighters is important, they caution residents not to be misled into believing that a contribution will be directed to any local agency.