Ask a Canada Law Question, Get an Answer ASAP!
Are you saying this was an error on their part and they missed this all these years?How could you not have realized this until now?
Yes you do.
This is as a result of their error and you tried to find out why your paycheque or documentation never reflected the contributions but they never explained it.
They are required to put you in the position that you would have been in had they not made this error.