Am I being scammed? Advice please.

[klondiketradingcompany]

Hi all, I'm a new seller, just had my first sale, when I sent the Invoice to the buyer, they sent a message back claiming I had changed the listing from free shipping to buyer pays. I checked the revisions and only had one change to the description (spelling error) prior to his bids. 

what should I do in this case

Thanks in advance

[lotzofuniquegoodies]

It's possible they thought Shipping not Specified meant free shipping. Instead of needing to contact you. When I checked some of your current listings for shipping to the USA no shipping is noted. May have been what caused their confusion and error.

-Lotz

[klondiketradingcompany]

sorry my bad, I forgot to mention they sent a screen shot indicating "Free Shipping" under my ad .. (easily photoshoped I think) .. as far as I know I did not check of free shipping on the ad and when I view it I see a fee, wich leads me to believe I am charging for shipping .. I'll review my listings to be sure .. like I said I'm a newb and it's all so confusing lol ..jk .. thanks