Ring America for free 'til Christmas
Tesco are hoping no-one remembers that Skype and the like exist, by offering free calls to America via the new Tesco International Calling App. You have until the end of the year to get the full value of their promotion, or obviously, you can ignore it and use one of the myriad of alternatives that already exist and are free all year 'round.
If you're determined to ring an American landline for free, then you can download the Tesco International Calling App for free from the Apple App Store and Google Play.
A Tesco spokesperson said: "Thousands of people in the UK have family, friends or business contacts across the pond and Thanksgiving is the perfect time to get in touch. So, this seems like the ideal time to run a promotion allowing Brits to call the States for free."
When the promotion runs out, presuming Tesco put things back the way they were, it'll cost you 2p a minute to call the USA with Tesco's app, or 25p a minute via Tesco Mobile network.
If you don't know anyone in America, you can ring other places for a reduced rate. So if you're calling China or Australia, prices start at 1p per minute. Or, again... and we can't labour this point enough... you can do it for free through a whole host of things that exist on the internet.
If you have a WiFi connection, use Skype, Google Voice, Viber or whatever and save yourself the bother of all this nonsense.