Your inital report didnt indicate that you talked to the seller. Always contact the seller if you see something amiss.

if he made a mistake and it sure sounds like it, he should reimburse return shipping back to him and refund your full purchase including what you initially paid in shipping.

From your description, he messed up.
If a mistake is my fault, I pay both ways.

Brian
LTC, USA Ret.
NRA Patron Member
AHFGCA Life Member
USPSA Life Member