has anyone heard of any admissions being revoked this year?

<p>has anyone heard of any admissions being revoked this year? i am reallly worried because i had a D in calc ab/ap both semesters senior year. after i got accepted, i immediately notified them through writing. i planned on taking calc over in the summer at a community college but i didnt realized the price of the textbook was so ridiculously high. what do you guys think?</p>

<p>Did they reply? If they haven't said anything, I guess everything should be fine. But call them and check if they even got the letter.</p>

<p>who do you call to tell them that you've have a D (or might have)?</p>