The whole idea with creating your own database to store such information is rather flawed.
If you get connection issues, as roblox tends to get from time to time, then nothing can be stored on datastores.
You will get a HTTP0 message or something similar. But still people will claim they bought this and that, and there’s no way of finding out because there’s a quadbillion purchases! You will have to scroll through a list that takes hours.
Why has there not been a search button added yet? It’s essential to looking up false purchase claims.