Hello,I'm an Italian PhD...

Hello, I'm an Italian PhD student in Germany with an Marie Curie-ITN fellowship. I've two question about my fellowship. The first one is if the Mobility Allowance has to be taxed or not. Because they simply add this amount to my salary, so that I have to pay a lot of tax on it. The second question concerns the reimbursements: now I'm in England for my work for some months and I've to pay all expenses for my travel and relocation on my own. The professor say that they are included in the Mobility Allowance, but I think they should be covered by the "Contribution to the Training Expenses". Is it true? Thank you