At the beginning after many unsucccesful tries of filing newcomer returns with Last Name only written in SIN and passport and immigrantion documents (we checked all 3 to see how the name was written), contacted Efile desk, other taxfilers contact too with similar problem. Efile desk desk the email release to all Efiler which Mario B posted in this post (please check his post 2 weeks ago). Upon contacting Efile desk I was told that we have to put the name as per legal papers and con't put any name in any box. I was told if client insists on putting first name then Efile won't be accepted. For name change, client has to contact CRA.
Once we started following that, we have been able to file all returns.
