If you are ready to take a checkride, you should able to figure it out for yourself. I got mine damaged and within minutes I found out how to get a new one. There are even other threads on this forum that cover it. You can also go to the FAA's website and search there. It is easy and takes about 2 weeks and $1.00. You will not have it in time for your checkride, but your damaged one may be fine depending on the examiner. You only need the exam ID and raised seal, but some DEs are picky.