A warning has been issued for thousands of Santander customers who are banking with the high street giant on either Monday or Tuesday. Santander is set to shut a string of branches between Monday and Tuesday.

Santander said it “intends to integrate TSB in the Santander UK group”. The TSB name could disappear from UK High Streets after the British bank’s Spanish owner announced its sale to rival Santander.

Santander CFO Jose Garcia Cantera discusses the lender's decision to agree to buy Sabadell's UK unit TSB. Speaking on Bloomberg Television, Cantera says "most" of the savings from buying TSB will come from projects that TSB is currently running "that we will not need to do when the two banks merge,