Originally Posted by
Counsellor
If you cancel the reservation with the certificate still attached it may be lost. That's why it is imperative that you first detach the certificate, then -- only after the certificate is detached -- cancel the reservation. To be safe, do the detachment first, confirm the certificate has returned to your account, then (maybe a day later) cancel the reservation.
I've cancelled reservation online with TP attached. TP certificate just returned back to my account, no problem. But always keep some email or paper record just in case something goes wrong.