2 months beofre unlocked iphone5 uk t mobile updated-again locked-why
 

why factory unlocked iphone5 after update again locked?

Read here:
its the same network as this other dude so probably your case is the same(more info on this link):

http://forum.gsmhosting.com/vbb/f454...-back-1738026/

Network has relocked all the IMEI clean
This was not only with us but
Worldwide and if network relocked the phone.
We are not responsible.