Riddle of the "seat-stealers"

Riddle riddle riddle
Whoever solves this riddle will win either of the following prizes
1) 15 minutes of free talk on digicel (after you talk for 3 mins)
2) A day's talk for $1/min from GT&T (after you talk for 10 mins)
3) Free breeze from the Guyanese politicians new housing area
4) A blog prize (to be named)


Somebody stole somebody's seat.
The persons who saw it stolen did not report it correctly.
The people who stole it sit in it every week.

Whose seat is it?