Most of the time you can cancel the accommodation if you don’t get the place. I spent my first two years in Causeway View and I’m pretty sure you just had to let them know if you got the place or not. I’m not sure if this is still true or if it is the same for other accommodations/ the uni’s student village (Hillhead). If you’re unsure the best thing to do is to contact the accommodation directly either by email or phone, don’t be afraid to. It’s their job to help you and answer questions & they’re usually nice to prospective students (in my experience anyway)