EGPF
Education does seem to factor, even with a degree. You can apply with equivalent to GCSE/A-Level from other countries but they must be equal those grades. There is a site you can see if they convert.
I applied and sat PILAPT with CTC/L3 but after sitting PILAPT (on the day) I was told that my English Grade did not equal the GCSE C required. I'm 32 and to be told that left me a bit speechless considering I had ample other qualifications.
I went home and booked myself into an IGCSE English exam which I sat a couple of months later. I was possibly the oldest person sitting the exam. Now i have an A* IGCSE although my plan to reapply has changed somewhat.