@flashk kindly advise ur inlaw to write a cover letter to avo attaching relevant proof of the response to their initial email, I had similar experience before when i was first issue a NER on account of insufficient point due to cic claim that I never proof my adaptability requirement on 24-03-15 I resent the copies of all my application forms, documents & attachment the next day with a cover letter that the decision was made in error and cic corrected itself and issued me a PER mail on 15-04-15 & also change my online status from decision made to in process. Please let him be courteous In his letter & assert that it must be an error. all the best, it shall end in praise for all of us.