Child benefit underpayment

[Cazza0104]

I have just realised that I have not been getting the correct child benefit paid to me since it went up in 2009. Every other year it increased correctly and I therefore trusted it to do so again. I have lost out about £100 a year. Does anyone know if I can put a back-claim in?

Thanks, Carrie

Sorry op but dont really understand your post? Chb is a set amount per child, how can you have an underpayment? Have you had another child and not claimed for that child?