“Also, I don’t understand why would they want the official reports. It would be easier and cheaper if I self reported them and if I get accepted I would send the official ones.”
My guess is that Lehigh doesn’t want to have to deal with situations where it finds discrepancies between what an admitted applicant self-reported, and what appears on his/her official report. Also, not trying to make light of your family’s financial situation, but if you can’t come up with the equivalent of $12 USD for something as important as an ED2 application, I don’t know if going to school in the US is going to be in the cards, even if you do get significant FA. Who’s going to pay for your travel costs to and from school? It gets cold in Bethlehem PA in the winter, who’s going to pay for your winter clothes?