CornMuffin

Thanks And I looked it up, that canadian school does not take part in the agreement about the April 15th deadline

I received an acceptance letter from a school in canada in mathematics, with no support (I still may be offered financial support). But they want me to accept or decline the offer by March 15th. So far, I've only heard from a couple schools, and this one is the only one to accept me. If no better schools accepts me by March 15th, should I accept this offer? But then what if another school gives me a better offer (maybe with financial support?), would I be able to get out of the canadian school so I can go with the better offer? What should I do? Should I call or email the others schools before march 15th, to inquire about the status of my application before the deadline. (who knows, maybe they already sent out an acceptance letter in the mail!). Thanks.