I agree with Dave, I would discuss a partial reparation to save you both grief. Especially if it isn't a great deal of damage, without photos I cannot assume the nature of the flaw. Did you provide a photo to the seller as proof and to help your case?
You shouldn't have to pay ANYTHING to return an animal if the it is not as represented by the seller, but that is my own opinion of good business. If they had mentioned a flaw, then that would be different. Generally, anyone could assume beforehand that an animal that was flawed or sick may be sent back, and therefore mention any issues or replace it with a better animal before sending to save you both trouble later on (not to mention their reputation). Personally, I inspect my animals very well before sending them out. Honesty, customer satisfaction and healthy animals is the way to go if you can, you want folks to come back!
Good luck working something out with the seller, I hope he at least gives you a small refund as reparation for an unexpectedly less than perfect animal.
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Steph S.
Boas...
1.1 Albino boas (Loki & Hope)
1.4 07 Het. albino boas (Petty & Lady,Sierra,Madeline,Lola)
0.1 Reverse stripe poss. het albino (Cookie)
0.1 Salmon/hypo (Scarlet)
0.1 Anery poss. het snow (Missy)
1.0 Anery (Reno)
1.0 Probable Super Salmontine(Kahn)
0.1 Salmontine (Sonya)
1.1 DH Sunglow (Gabrielle and Bonnie)
1.0 Hypo het anery (Don Juan)
1.1 07 Hypo pos. triple hets (Rico Suave & Pumpkin)
1.0.1 Het. Anery (Guy & ?)
0.1 2007 Mostly striped boa (Andromeda)
0.3 Normals (Ophelia, Sasha, & Lulu)
1.0 Surinames (Solomon & Surreal(deceased)
1.3 Hog Isles (Mr.Orange & Peaches, Tang, Isis)
0.0.1 Central American (Sassy)
1.0 ATB (Satan... seriously!)
Pythons...
2.1 GTPs (B., Monty & Jewel)
0.0.3 BPs (MJ, Precious, Houdini)
1.2 Carpet Pythons (Jackson, Charlotte, & Cassandra)
0.1 Blood python (Akaia)
1.2 Children's Pythons (Spot, Freckle and Speckle)
Misc.
1.1 Mandarin Ratsnakes (Jack & Jill)
1.0 Boxer/Pitt Mutt (Tyson)