Hello
I originally applied as ATC SNCO, and have 4 GCSEs and was informed on live chat that my grades from college would be equivalent to 4 GCSEs therefore I met the minimum of 5 for the role.
Later on, AFTER doing the CBAT and listing my GCSEs in my application which was initially accepted, I went to do my filter interview to be told no qualifications are equivalent to the minimum standard.
Was a mistake on the RAFs end which they apologised for, but I also take credit as I should of contacted the AFCO directly in regards to it before applying. I went ahead and changed my role, did my AST & interview, now waiting for my medical in a few weeks.
You have a few options, either do the GCSE you need and pass it or join with a different role, although most jobs require a minimum of English and Maths at Grade C.