Migrating from esa to uc appointee

Hi David, the person who im appointee for has just received £340.59 new style esa… have u any idea why this figure is this amount, I thoughts it was £140.55 x 2 =£281.10 every two weeks.. she had her run on amount and her first. UC payment is 20 June.. it works out an odd amount over the £281.10.. I have no journal … will I have to call UC or esa.. or should I wait for the next payment and see what it is.