I placed bet on tie with odds 7. Today i saw odds has dropped to 4.64 so is my winning amount.
My I ask why?
Why do you change odds AFTER bet has been placed? You can't do that

Where can I find my payed ticket?
Getting the same issue, I placed a bet with odds 1.34 IIRC and now the odds dropped down to 1.29 and my bet also changed to 1.29
Changing odds after the bet has been placed after few days is so ridiculous. Anyway you can find your ticket at the menu "My Contest" then click "My Wager"