"As part of an overall commitment to providing our customers access and ability to do their banking when, where and how they want, Santander has concluded an agreement with the Post Office," the bank said on Monday.

The UK business, part of Spain's Santander, said the arrangement was part of a wider investment programme that has seen it refurbish 40 percent of its branches and invest in digital technology.

(Reporting by Matt Scuffham; Editing by Steve Slater)