hi! my name is Patricia. I won a discoverEu travel ticket and I was supposed to use it in august but unfortunately i can’t go in august anymore. i already added my pass in the app(with all the information including the validity period) and now i want to change my validity period but i don’t know how. I was wandering if i can do this and if i can maybe explain it to me how to do it. 

thank you! have a nice day!