These are standard tactics. They threaten legal action but rarely follow through. It is unlikely that anything will actually happen on monday. They are refusing to accept payments because they are trying to get their full commission....
Here is some reading to help you understand your rights.
http://canadastudentdebt.ca/collectionagencies.aspYou might try calling Rogers just to tell them that you want to pay the debt, but the new collection agency wont accept any payments.. and see what they say...