Not sure if it is of any help as this case happened in Germany and is mainly about type rating bonding.
The text (in German) of the German Federal Labour Court can be found here:
5-azr-339-92
The general content is that a type rating can be bonded maximum 1 year due to the special circumstances of a type rating as a type rating expires after 1 year and has to be renewed thereafter.
Since you are talking of line training, simulator and other initial courses, it might be of interest that all of these trainings and simulators are of a limited validity and expire after some time. Cost of hotel, petrol etc are associated with the training and might as such be part of the training costs, you don't happen to have simulator in your garage at home, don't you?
You might have been on duty travel by order of your company while being in line training and simulator, so who has to pay the expenses and per diems for duty travel, you or your former company?
Just a few thoughts, all the best to you.