I am blocked from psn, Can someone help??!!

Hey guys, i am blocked from psn on all accounts old and new made. i get a 800200a27 code something like that. I have a phat 40gb ps3 on tbv2.51 cfw and use v4.31 sen/psn enabler and disabler.

Can anyone help me on how i can get psn access again?

Thanks in advance.