Vodafone are offering their International calling add-on for free for their mobile contract customers.
Normally £5 a month, Vodafone International is a Pay monthly Extra that gives you access to special international call rates to any destination in the world except the Channel Islands, the Isle of Man and Cuba.
To opt in, simply text
97886 and you'll enjoy Vodafone International free of charge until you opt out or change your contract.
Visit the Vodafone International free offer page for more information on the international call rates for the destinations you call most often, and see how much you can save.