I sat the proficiency test with an RTF examiner today and I passed it.
An RTF Examiner does radio practical tests; hopefully he was also either a CRE or PPL (FE) As stated above. Before you do the test you need a Form
SRG1119D Course Completion Certificate signed by a ATO or RF. You must send this form to the CAA together with the form the Examiner gave you.
I think you should also check your licence, if it were an EASA licence it would have been issued in the last 2 years. It may well be a UK lifetime licence issued pre 1999 in which case it is no longer valid on an EASA aircraft other than with LAPL privileges. Of course the Examiner should have checked all this and advised you.