Offers Mailing List CUSU runs a discounts and offers mailing list. We partner with local and national business to share great offers with students, sign up to be the first to know about exclusive promotions and deals. Log in to be the first to hear about fixtures, tickets, and showcases. TOTUM The new name for NUS Extra, a national student discount platform. It includes over 200 discounts and includes a 1-year free ISIC Card. Get your TOTUM card now, or install the TOTUM app to find out more. Dominos Buy one get one free *every day*! Just use PIZZA241 at the checkout.