A women’s rights and gender equality campaigner is having her bank account shut without explanation, her family said last night.

Professor Lesley Sawers, 64, the Equalities and Human Rights commissioner for Scotland, has been with the Royal Bank of Scotland, a subsidiary of the NatWest Group, for 32 years.

However, two weeks ago, she and husband, Allan McKechnie, were told that their joint account, containing thousands of pounds, would be shut next month. In a letter, RBS said that it would be ceasing its “banking relationship” with the couple and they would have to make other banking arrangements “outside of the Natwest group”.