Pearson voucher with free retake of ocp exam

[Sergiy Romankov]

Hello guys,

I discover on pearson`s page which is dedicated to oracle certification that there is a voucher
with option to take an exam twice.
https://wsr.pearsonvue.com/vouchers/pri ... oracle.asp
OCP Exam Vouchers with a free retake included (i) can be used by one person on one attempt plus a retake of the same exam (ii) can only be used for a retake if there is a failed first attempt on file, (iii) becomes void for both attempts on the voucher expiration date.

I am not sure whether it some special voucher which should be bought or just regular one.
Does anybody have such experience with retaking exam ?