2008-07-25 13:02:12 - Heather Mills' publicist Michele Elyzabeth, who has worked with the charity campaigner for the past four years, has quit her job, declaring Heather "impossible" to work for.

Heather Mills' publicist Michele Elyzabeth has quit her job, declaring Heather "impossible" to work for. Michele - who has worked for Sir Paul McCartney's ex-wife for the past four years - claims a "heated argument" is to blame

for her resignation. She said: "After working for Heather Mills for four years, I have decided to cease representing her. Since her divorce has become final, in my opinion, Heather has become an impossible person. "On Wednesday (23.07.08), we engaged in a heated argument during which she called me 'stupid'. I reminded her that she was not 'God' and she answered, 'I will never ever talk to you again'." Michele - who claims she is owed money by the charity campaigner - also admits she can now understand the public perception of Heather. She added to US TV show 'Extra': "I have been very patient in my dealings with Heather, however, I cannot take anymore. I have given her substantial unpaid time and attention. I am owed money. I refuse to be subjected to her outbursts. "On reflection and given the way I have been treated, I now have sympathy with much of what has been reported about her."