HI I can not find what I am paying for monthly

Hello
I have used Unity for 2 years, and I have tried Unity Storage Upgrade once.
However, I do not need it now, so I wanna cancel the subscription.

Keep finding how to cancel it, however I cannot find where to cancel my storage subscription.
When I checked my storage usage, it is enrolled as 1 GB, free plan.
I have checked Unity team plan, but I am using Unity Team Basic which is free.
I am really confused what I am paying for monthly about 5 $.
I am trying to cancel the subscription from 3 month ago, but I couldn't.

It would be grateful if anyone helps me.

 

Contact Unity support directly.