Price Gouging?

A while ago I ordered this large bottle of Purell from a third party through Amazon 

to use for our now cancelled pop-up.

It arrived  in record time even though I'd asked for standard delivery.
It only cost $28.00 but the delivery charge was $108.00!!!  
And the shipment wasn't from far away, it came from California.

Stunned and very angry,
I emailed Amazon demanding my money back.

Just an hour or so later
they refunded the entire $108!

Yeah refund!
Boooo price gougers!