I got the same letter , and as I am on Tier 1 General and never supplied any kind of English test cert. or Toiec ? The letter states this : Purpose of assessing whether any of the grounds of curtailment under paragraphs 245DE(c), 245EE(c), 276BD1, 276BN1, 276BS1, 323 (other than 323(vii)), 323A, 323...