How I can make someone do something for me ?

So I have lost u can say my offer letter to college , and it had details of what kind of documents to bring on 30th of this month .i already msg the support lady to ask the details of the document but she said to just check the offer lettree , mind u the offer letter was given in physical form and is already been lost 😀, so I called her , do u mind telling me what kind of documents u will be needed ! Her: u can check the offer letter but yeah u need blah blah blah , she told me althought some of it but I am sure am missing some , and also wondering. Do we need that offer letter on that day , now am embarassed to call and ask and tell her I lost it , how can I explain her the situation, btw before msging her I started pulling my hair , beat myself phsycially, hate life . So help me 😘 and yeah I got anxiety and confidence issue