Those miracles were dumped off at her free childcare on crutches as soon as they touched down!
Also, I think I know why she has a 'BuSINesS' bank account (other than to feel superior) she can claim back taxes for all her business purchases, so she'll have her business debit account out at Subway, Costa, hauls and claim its for work.
Also, if Chebs earns more than 100k I'm certain he can utilise her low earnings to reduce the amount of tax he has to pay (combining the tax allowances as a Ltd company, if he has one) so would make sense.