You can file a complaint about any stage of your competition, all you have to do is fill out this form and submit it.
You'll have to specify the selection procedure. This means you choose your competition's EPSO ID from a drop-down list, e.g. EPSO/AST/154/22.
Once you submit your complaint you'll receive and automated response with a reference number.
See also:
Appeal | Selection Board | Ombudsman
Related links: