damn my wife call me a while ago and she said the x5 wont start . this is the scenario when i start the x5 all lights are on but it wont start and i hear like a click

i dont know whats wrong with it so it was towed

what do you think is wrong with the x5?the car wont start thats the deal!

please help me! we been using the x5 for a month !i just wanna take back the x5 and get a new one is it possible?im so pissed!by the way its a cpo 2002 3.0