What can I do if we don't finish our course?

I'm a year 13 a level student, doing maths, bio and chem. Last year myself and some classmates showed concern for our maths as we did not think we would finish the course, our teachers did nothing about it. Now 2-3 weeks before study leave, we have to finish S1 and M2 and do all of S2. We've been given 2 extra lessons a week + after-school clubs but they still aren't sure we'll finish the content in good time before our exams. Is there anything we can do, or Pearsons can do, to help us?