What was the decision on your case, i am in similar shoe. I raised a webform to correct the mistake within 15 days of my visa application none of the officer asked me within 40 days my visa was approved and i came her started studying after coming her i recieved a email response saying the information was not updated since no applications are in running and i need to inform them in next application so that they can update, now i applied for pgwp and PR application i wrote a explanation letter i am so scared