I will answer to my questions by myself then (and maybe wrong).
Yes, ATPO=4H340084A0457 and FPO=j328C221.
No, if the number on the chip is ATPO, then there is only one chip with it.
Thank you! Your answers helped me to figure it out.
Recently i returned to service center with maximum angry face and minimum proves.
They are cheaters. Managers gave me 30% money back with many apologies. We decided to blame the engineer(i talked by phone with that liar), who did it.