[Freeswitch-users] Nibblebill IVR not hangup

Hi, I have -2 in my account,but still i can hear ivr,Means call will never end even i have amount in minus Bellow is my dial plan, <extension name="tollfree800"> <condition field="destination_number" expression="^1{0,1}(800\d{7})$"> <action application="set" data="nibble_rate=1.0"/> <action application="set" data="nibble_account=2"/> <action application="answer"/> <action application="lua" data="/opt/ivr.lua"/> </condition> </extension>