I also do combine shipping .  Unlimited Number for one shipping charge.  Please wait for combined invoice to show adjustment before paying but after selecting Buy it Now or offer.  If you have any questions please message me. 

Please note that I cannot combine shipping on international purchase due to the global shipping program.  

I also do offer refunds/returns for 30 days after purchase.  No reason needed at all but just message me to start the process.  Thanks. Bill.