Most carriers attempt delivery 3 times. To contact your carrier, their information is listed on your tracking link provided by Tavour. If your local carrier has informed you that your crate has been 'Returned to Sender’ or ‘RTS', it is very likely that it actually hasn't been sent back to us, but stored in at the local carrier's main shipping hub. Please contact support@tavour.com for us to contact your carrier for re-delivery attempts.