Thanks for your answers KeyGrip and BillieBob.
Sorry if the way I present my post wasnīt right. I didnīt mean to. Itīs only that Iīve been doing my CPL training in Spain and there is a different interpretation of the law regarding this matter between my FTO and the Spanish CAA (DGAC). While my FTO agree with you, the DGAC says that you must complete your 100h before CPL course starts or at the most while you do the CPL course. The guy of the DGAC was having a look of the different JAR articles and couldnīt find the one to give him the reason, but he swears he has read it somewhere and he was going to find it for me.
I have already have a look into the JAR-FCL but I couldnīt find anything to give the reason to the DGAC. So I just wanted someone with more knowledge than me about this matter to give their opinions and at the same time if possible to get something in black and white that I could print to show this guy and prove to him that he is wrong. As they want me to retake my CPL and probably fine me for doing it the "wrong way"