The People’s Operator will stop trading from 26 February and from this date, customers will no longer be able to make calls or texts or use the internet.

All customers should have received an email or a letter by now including a PAC code so they can move their number to a new operator. If you haven’t received anything, you can contact the firm’s Webchat team.

If your contract was due to renew before 26 February, your service will continue as normal until that date without charge, the firm said.

TPO, which offered SIM-only phone and tablet deals from £3.49 month, said customers can get one month free with provider SMARTY.

To get this deal, you’ll need your PAC code and you must switch by 26 February. SMARTY plans start from £6.25 for 1GB of data.

TPO has appointed Duff & Phelps as administrators.

The company launched in 2012. It set itself apart from other mobile operators by letting customers designate 10% of their bill to charity.

The SMARTY deal is available here.