You cannot contact Customer Services before the item arrives, they'll just tell you to wait, until at least, one day after the item's last estimated date for delivery.
It is worth waiting even a few days after that, as the post lately has been very slow. Don't worry too much about identical photos seen, eBay have a library of photos for sellers to use when selling brand new items. Some ' lazy' sellers use these for used items they are selling, and if it's not a new item, they're opening themselves up for cases for item not as described.
Don't worry too much beforehand, but if you don't receive your item a reasonable time after its last estimated date for delivery, proceed this way:
Go right of the item purchased, and from More Actions select.... I Have Not Received My Item.
If you are not fully refunded within 3 days, you must escalate the case on day 4 or within 30 days from opening the case, and eBay will step in and force the refund.
Do not close the case early for any excuse or promise the seller may give, and do not forget to escalate.
