High street giant Santander is offering £150 free cash to customers in January who are willing to ditch and switch their current account.

Bank customers are among the most stubbornly loyal in the industry, with many keeping the same bank for their entire adult lives after first opening an account.

This is why many big-name banks resort to cash incentives to get customers to move banks.

Santander is one of four high street names, along with Nationwide, Co-Op and First Direct, which is offering…