and ,I have read the second post of Mercury for this topic ;
which says ,long time ago ,something related with V.A.T.This Anybody ,who does not know ,anything about the laws and tax .
You can not put V.A.T. underneath Your bills .Because ,like every shop else ,such like Migros or kipa etc..You must put down the prices ,which is ıncluded any tax in it .Other wise ,you are going to be fined by the goverment .I know this ,because I am a financial adviser and study management and law .