Ebay estimated shipping MUCH higher than actual cost when printing label

[cleaning_out_the_garage77]

I've been having some issues with my auctions when selecting UPS shipping.  This has happened on a few auctions but the latest one was extremely excessive and probably costing me sales. 

Seller bought my item and was charged $50 for shipping.  I entered the correct weight, and package dimensions as well as the correct service (UPS ground).  After payment, using the entered values, the shipping label was created (through ebay) with a cost of under $25.   

I ended up refunding the buyer the difference.  I've had to do this a few times when shipping is $15-20+ more than what ebay actually charges once the auction ends. 

How can i correct this so the estimated shipping cost in the auction is closer to what is being charged once it ends?

[rfmtm · Accepted solution]

Make sure you have enabled passing on your ebay shipping discount to the buyer in your Shipping Preferences.

[redmodelt]

I might not be so quick to give a refund. UPS and FedEx shipping you see when sending the package is an estimate, not actual cost. Any money paid at the time of mailing for those services is a holder, actual shipping will not be charged till item is delivered. While it could be less, it also could be higher (higher seller would have to eat). I would suggest waiting till it is delivered and you actual are charged before sending a refund if needed.