So after receiving a replacement body that won't fit in the base, I contacted SSC to get a new one and this is the e-mail I received.
Thank you for your e-mail. I am sorry to hear that the replacement did not fit flush on the base. In this case there are a couple of options that I can give you in an effort to resolve your inquiry. First, if you would like to keep the better of the two bodies, I can offer you a $45.00 Sideshow Collectibles credit towards a future purchase.
If the above credit offer is not satisfactory, then I can certainly offer you a full refund. Please let me know how you would like to proceed so that I can further assist you with this matter.
That wasn't going to fly after waiting two years for this. Called and was told that they are out of replacement bodies and the wait list for one is completely filled. They said they won't be receiving anymore replacement bodies. I said really with 7500 regs. still coming there aren't going to be anymore replacement bodies? They said nope. I was like send me a new base then for the replacement I have that won't fit in the one I have. So they are sending me a new base. Here is hoping to god it fits the replacement body, because they said if it doesn't there isn't anything else they can do, but send it back and give me a refund. Which would be ****ing dumb! So to let everyone know apparently there are no more replacement bodies for Batman unless your already on the wait list.