If you do the CPL route, the Instrument rating must be observed by the CAA.
If you do the ATPL route, the LST must be observed by the CAA.
However, I'm just someone who went through the process 10 years ago.
I would get onto the training provider in Amsterdam and get them to hurry up the process. However, it is the UK CAA and they have been known to be overtaken by glaciers.