So I have finally spoken to an experienced advisor at the Tax Credit Office in relation to my overpayment of £2900. Apparently, the compliance officer has removed both the standard (£3000 a year) and the severe element £1300 a year) This took effect from July last year hence, why the over payment is that amount. I am still entitled to the standard and I am unsure whether the case worker associates both elements as severe disability. The standard should not have been removed and because of the action taken, has resulted in severe financial hardship. My full award based on last years income should be £480 every 4 weeks but the only amount I am currently receiving is the £65 child tax credit every week.