They said it may or it may not.!!!
The phone is a chinese clone (!) So no real experience to call on.
The supplier has sent this as the network specs:
3G Network WCDMA:2100/850 (HSDPA)
My ZTE Blade and my samsung europa (both hated by me) are 900/2100 HSDPA spec and work fine with my 3 sim card. Dare I risk it?
I have 6 months left on my contract so would prefer not to have to get a different sim or send the phone back.