There are handbags for dogs? To carry or ride in?
Paypal's Resolution Centre is at the top of your PP account page under Tools.
The first suggestion is to get in touch with your seller.
Do NOT get into a conversation. Just ask "When was this shipped? What service was used? What is the tracking number?"
A useful answer at this late date would be an immediate refund. Nothing else.
An offer of a replacement is a scam. It won't arrive either.
Don't worry if there is no tracking number, it's just a Seller Protection thing.
Escalate to a Claim.
If the seller cannot prove delivery (not shipping, delivery) you will be refunded.
And with your next purchase, mark the last expected delivery date on your calendar, so you don't waste time if this happens again.
Two in a row from August-- what was happening then?