Seem that each EASA country interprets the rules differently. In the UK you have to do a MEP skills test separately before you can do an ME IR Skills test. In Holland you can do both in 1 skills test.
Can't recall anything in the rules saying a class rating has to be done in 6 months, it's the result of a skills test that is valid for 6 months. So you have to apply for your license within those 6 months or redo your skills test.