Possible to Change Region on PSN?

I need to change my region beacuse iam leaving in a country and there is no same psn cards for these region in my country so i want to change it so i can buy psn cards hope you do that like the xbox beacuse you can change your region anytime on xbox hope playstation can do that also.

Mod Edit: Moved thread from General to PSN Support, updated title to be as descriptive as possible. --GrainneNessa