cost of LPC's and OPC's
 

From what I have gathered, when you're employed by Ryanair, you have to pay for the renewal of your licence.
They make you pay your LPC's and OPC's...... but how much is it? Can anyone tell me yearly about how many STG's have you got to give to be able to be current?
Do you also have to pay for your route check also?
Is there any other catch about them that i should be aware of regarding all these fees that they charge you even when you're generating money for them?

Thank youi