Do have expertise
If you have expertise, you have special experience and skills in a certain field, but you can't get formal certification because you don't have corresponding certificates or qualifications. Then, whether it is necessary to pay for the second interview depends on the regulations of this institution. Generally speaking, the examination institutions will have their own examination policies and charging standards, so they need to consult relevant institutions or official website for the latest policy information.
examination fee
If it's just an ordinary re-examination question, then usually the second exam also needs to be paid. Examination institutions usually charge different examination fees according to the number of examinations and subjects. In this case, candidates are advised to know the examination policies and fees in advance to avoid unnecessary economic losses.
Examination policy
To sum up, we need to pay attention to the specific situation and the provisions of the examination institutions in order to determine whether it is necessary to pay fees and the specific standards for payment.