Normally, the courier messages or calls to inform you that they are on their way to you. This is done so you can inform them to deliver at a later time or day if necessary. But, sometimes they are busy and are not able to.
At the off-chance they show up and there's no one to receive the order, don't worry as they will try to deliver one more time.
We recommend you contact them regarding your order & let them know when and what time it is best to re-deliver your package. Their customer service number/s will be available on their respective websites. Or simply click the tracking number provided to you in the shipping confirmation e-mail & it will redirect you to their website.
In the unlikely chance that they return the item to us (which they will do after 2 failed attempts of delivery), we will contact you & you will have to pay the shipping fee again.