will it get marked?Watch
Its a dog eat dog world sorry.
If the examiner opens it up and finds pen, they are confronted with someone that can't follow simple exam regulations. No point glossing over the hard realistic truth.
It also presents a security risk - answers in pencil seem suspicious, and indicate an interference by a teacher after the exam was taken in.
The lesson - use pen you fool. If you can't follow simple instructions, why should they pass you for GCSE?!!!