A Roblox Error?

I do not know where or which category I would ask this so please bear with me.

Hello! I have a concern about the ROBLOX website not showing the appropriate price of my gamepass.

A client of mine bought my gamepass for 325 robux for his request of a GUI. But while verifying the expense it did come into transaction. But why is it that it shows nothing? Just a price tag of 0. I did not make the gamepass offsale or free or anything.

My side:

His side:


My Question:
Why is it like that?