3510i unlock code

please help me with an unlock code for a 3510i imei no.
350998809402390
on uk vodafone
i keep getting code error when i try multilock 7
thanks in advance
duane

#pw+198524020677624+1#
#pw+349106676773307+2#
#pw+175364204315263+3#
#pw+743160477123262+4#
#pw+734330362205733+5#
#pw+479917400741517+6#
#pw+342866276060666+7#