I called the original dealer I bought it from (in Ottawa), they told me that they'll look into this tomorrow and call me back. The one I called today was the Toronto one where I went once (near Yonge & Steeles).
And, yes, it's a MAPP NC6120. The plan states that everything is covered exactly the same as in the normal warrany, except for ... "wear and tear". But wear and tear is a pretty loose definition. And that's where I can't get a straight answer. It doesn't sound like breaking a spring is considered to be wear and tear, however, I do have a biased opinion