check recieved from sure advance

Back in October, I received a loan from sure advance for $306 and paid it in full within a two week time frame. I then closed my bank account and opened a new one being that I had just finished paying off two more from My Cashnow and Bottom dollar, and noticed strange transactions, so i had to be very proactive. Today I received a check in the mail from sure advance for $9.64. My first inclination is to ignore it, rip it up and throw it away, since im sure this is away for them to access my account. Is this correct? I have no intention of calling them and I may also put a complaint in the better business bureau as well..any advise?

Thanks