My TT-GS07 Overbite has 2, if you're looking at him from the front, left arms. Hasbropulse cannot assist me as they more or less said the figure in question is sold out, so they can't replace the arm. If anyone out there has a spare figure(desperate at this point) with a wrong arm and wants to swap, id be happy to swap. Please reply or contact. Thank you.

 

Hoping you found an arm   I don't know if you're good at modding but those arms as the same as Rippersnapper. And the hands are removeable. I'd suggest just painting both rippersnapper claws... blue hands don't look that bad with the color scheme Not a perfect solution by any means.
You can do the fullarm too, if feeling motivated. It sucks when they mess up limited release figures like this because you don't have many good options.