You need to write a formal letter to the Board of Directors themselves of the Homeowners Association and advise them exactly of what you have said here: that you have never applied nor been appointed or elected to the Board of Directors and that you do not wish to serve on the Board in any capacity.  Advise them that if in fact the Board or the HOA has incurred any liability to which you could have been - or could be in the future - held accountable that you expect indemnification given their error in listing you in this capacity.  Ask them to remove your name "forthwith" and provide you with the necessary documentation indicating such.  Also ask for a copy of their liability insurance covering the Board in effect for the time period that you were incorrectly loisted.  Good luck.