I have just found out that the company I work for has not amended my tax for 2008, although they received 2 tax credit certs in 2008. One Cert was based on my new tax credits for 2008, the other was issued when my wife started working. We are joint assessed. How do I reclaim what is owed to me? The company is in start up mode and says that they can't pay me what is due. Can I claim a refund from Revenue in 2009?