I am sorry, no to be rude, but This is something you need to grow up and learn.
Lesson learned.

No one will give money to a complete stranger, with only a promise to some day to pay back.
Why cant you return the broken one and exchange it?
Dont insult our intelligence, or how we work hard for our money.

Go see family. Or learn to accept we cant always have what we want, until we can afford to buy it with no help from anyone.