Customer question

[Sherry]

I could use some input on the following situation.  I did a pitch raise on a
Baldwin Acrosonic the other day and also replaced a broken spring.  The
customer just called back and said she had a sticking key and wanted me to
come fix it (without charge).  Obviously I have not been clear enough about
what is "included" in a tuning call and what should be considered a new
service call request.  I have a feeling this lady will have a lot of things
go wrong with this piano since it was not maintained properly for many years
and just keep calling pretty much forever asking me to stop by without
charge for "little things" that are wrong.
  
1) Any suggestions for this particular situation.

2) How can I delineate what is and what is not included in a regular tuning
appointment (re:  repairs, etc)

Thanks for the help.   Sherry