So, it looks like Mrs Mcavennie's employer messed up her income tax contributions when she began her job back in 2007/8. We got a letter from HM Revenue & Customs looking for £800. Quite inconvenient really as we have just had a baby and she is on statutory maternity pay, so we are skint for the foreseeable.
Does anyone know if we have a leg to stand on against HMRC or her employer?

