Fabric Trial Capacity - Charged every month

Question

I have this Fabric Trial going on (Subscription ID - b1c897a6-b103-4ba5-8631-e0250fda013a)

I started the fabric capacity with an intent to learn for myself, and therefore the trial. The trial Fabric capacity (core2024001) still shows me "20 days remaining". Moreover, I didnt really use much of it in a few weeks now - almost didnt care since it was still under trial period. I would have k

Even with that, i m being charged hundreds of dollars monthly - some 384$ in January, and 484 now in February.

I have now paused the capacity - today (9-Feb-2025).

Kindly suggest detail on why am i being charged, and how can i get a refund of the charges - which were in the fabric's trial capacity.

thanks

raghav