I want to buy this phone http://www.dialaphone.co.uk/pay-as-you-go/tmobile/sony-ericsson-spiro-w100/PAYG_MoreInfo_DealsP19 and if I buy it with t-mobile it's £20 - £30 cheaper than the others. However, I'm quite happy with my current O2 PAYG SIM card and I want to keep that.
Will the phone work if I switch the t-mobile SIM card with the O2 one when it arrives?
Will the phone work if I switch the t-mobile SIM card with the O2 one when it arrives?