Nationwide Building Society has reconfirmed its pledge to having banking services “stay everywhere” amid the trend of closures from high street banks. This comes following new research from Which? that found the number of bank branch closures in the UK since 2015 has hit 6,000. According to the consumer watchdog, a further 645 sites are earmarked for closure later this year. This is the equivalent to over 60 per cent of the bank branch network since Which? began tracking closures in 2015. Under Nationwide Building Society’s Branch Promise, the financial institution is committed to offering ban…