It has been 4 months that I have started my master's degree in North America. I got my funding letter from my supervisor when I was in my home country, in my letter it was written that I will be a fully funded student. Now I am here and he does not pay that amount money. even for my first semester, I paid all of my expenses and tuition fee from my pocket. I finished those amount of money that I brought from my home country. now my supervisor does not pay properly. Life became difficult for me, even the university restricted my access to add and drop due to the hold. I am a good student who cares about studying, I hate thinking about money and tuition fee. I am not the guy who can study and do research like this. My prof pays other classmates more than me. This situation really disappoints me and overwhelmingly hard for me. Several times my parents wanted to send money but I did not let them. (transferring money is difficult from my home country.) I feel like crying these days and I could not stop it. Do you have any recommendation or sample letter? how can I make him understand?
+edited: I tried to talk my classmates about this issue. But when I am explaining this issue to them they think that there is something wrong with me and my classmates do not offer any collaboration with me such as publishing something or studying together. This payment issue affected my self-confidence completely.