Three UK is offering up to £250 cashback when customers switch to its network between May 6 to July 7.
The cashback incentive can be earned on certain handsets as well as SIM only plans, including the Samsung S22 Ultra and iPhone 13.
New SIM-only customers can halve their bill to £11 per month with Three’s six months half price offer and earn £100 cashback, accumulating £166 during the 24 month plan.
To switch, text ‘PAC’ and the account holder’s date of birth to 65075, and a PAC code will be sent which allows users to keep their number when switching to another network.
Customers can then go in store, call 0800 033 8006, or visit Three’s site and filling out a form.
Three UK director of marketing Andy Foy said: “With a record rise in the energy price cap and many other soaring household bills, we want to give something back to customers so that they can save money in other areas of their lives.