I got two PhD offers, both saying that my application is considered for funding. The deadline to answer to one of them has come and I am supposed to sign a form saying something like: I am taking the place if I get funding from this uni, and I have withdrawn all my other applications. How can I agree to this, if nothing is known about funding yet? I can’t pay for my studies. What if I agree to one offer and won't get funding there after all? I will loose everything! What to do?