I've been shortlisted for a band 4 NHS job, but I don't meet the essential GCSE Maths and English criteria since I'm from the O level and CSE days. I wrote on the application form that I have O level grade C in both subjects from 1987, but I can't prove it because I don’t have the certificates anymore (I'm 54). My only strong point is my 30 years of NHS experience, plus a bit in private healthcare. The interview is remote, and I have to show my qualifications (which I can't verify) and my photo ID, which I do have. What should I do?