As you may already know, there is an automatic 10% discount when buying HGs, RGs, SDs, action bases, and tools in any combination. It was brought to my attention that this discount wasn't working with a few products. I have fixed the issue, and now the discount should work as intended. I apologize for the inconvenience. Please let me know if there are any other issues, and I'll work quickly to resolve them.
Thank you for your business,
Gunpla Gus