If your phone - SIM card - is blocked by your operator, we can do nothing for you.
I am awfully sorry
You must contact your carrier.
[Edit - thanks to @It_ler -
But if you're NOT SIM-LOCKED
by your operator, you can get rid of the carrier restrictions by flashing an unlocked/unbranded firmware
So you need an unlocked bootloader
, an unbranded firmware
for your device and the ability to flash this firmware to your device.
And we have no threads about your device, actually, to XDA.
The best you can do is to post your request here => General discussion > Questions and Answers
and maybe someone who's got same device can help you.