Yeah I had this problem too. I wanted to apply to some Bachelor degree programs but I also don't want to give up my spot if I get in for a just a chance that I could get in elsewhere. So I decided just to apply there for the time being. I think if I don't get in then I am going to try to apply to other programs, but I am going to wait and see. However, I think they will probably give more than a week but probably at most like a month to accept your seat or not.