My wife has a 2 year marriage visa. I am British. http://www.hmrc.gov.uk/manuals/tctmanual/TCTM02113.htm We received a letter this morning from the HMRC (0845 602 6958) informing us that as of the 6 April 2010 we will lose the second adult component (£1892) of our tax credit award at an unspecified...