Unicron bought at TFN with two of the same shell

Bit of an urgent matter. On Saturday I purchased a 'complete' Armada Unicron from Leicester Vintage at TFNation 2026.

As it turns out though, it has two of the right shell part and I only found this out when I showed it off to my friends after the ending ceremony.

I'm primarily asking regarding the fact that Leicester Vintage was selling multiple Armada Unicrons and whether someone ended with two left shells (to be clear, I have two of the shell with the mini on port)

If anyone can help in another way I'll be happy to listen

I can stay at Birmingham Hilton Hotel up until 3 pm of August the 3rd. Alternatively I have a friend who will stay in the area until August 6th

Any help is appreciated