Locked out of ford tourneo minibus 2010?

I am locked out of my minibus, parked it up last night ok and came out to it his morning and it wont open on fob or key can open bonnet and lights flash when fob pressed but nothing happens. Could this be frozen locks? have put a charger on battery terminals under bonnet incase but battery is ok and fully charged in les than 20 mins. If not frozen any ideas on getting into vehicle please.