please answer from qurax , doc28 , others are also wellcomed

[asd]

hi  i am a doctor ,,in my history i had 2 noc , i applied for 3112,,my history details in my application  says:

from 2004  - 2006   noc  3111

from 2005 - 2010    noc 3112

but when i get my ref letter for 3111, it show that i worked from 2004 -2007

my q

1) how to explain this date confusion
2) how to explain this overlap


i was working as part time in the noc3112 job ( just on wednesday )


thanx