8390 "cannot undo restriction" comes up every time I put the code in.

8390 "cannot undo restriction" comes up every time I put the code in.

IMEI: 010128301065360, AT&T

#pw+907262631524364+1#
#pw+188064716642662+2#
#pw+318946344631145+3#
#pw+298345426645141+4#
#pw+713140141153341+5#
#pw+237315360535616+6#
#pw+432857661030154+7#

I want to know if the phone is messed up, or if after punching in certain number of codes the phone doesn't allow unrestriction?

What should I do? Any recommendations or help?