I've been accepted by a graduate college to study for a DPhil. My first choice colleges rejected me and I was put into the open pool. Although this college looks very pleasant, it seems unlikely that it will be able to offer accommodation, which is something I had really wanted. Also, more superficially, I would prefer a mixed undergrad-grad college.
I am unclear whether, because they have sent me a letter, I am now considered part of that college (in the understanding that college "migration" does not happen), or whether it is still possible to wrangle into a different college. Could anyone clarify this for me?