Question about changing order for Batch 5

Did anyone got a chance to upgrade to a higher model before it was shipped?

I ordered Pro batch 5 and been convinced that max would have been the right choice.

Would I be able to have any chance asking to the support for an upgrade? And if I do get to upgrade, do you think I’ll still be able to get batch 5 spec or maybe I’ll be getting batch 6 device?

Please let me know if you have any prior experience, thank you.