What exactly occurs when one opts to subscribe to Bubble? Could you elaborate on the process and the subsequent benefits? Are there any specific steps involved in the subscription? What kind of content or services does Bubble offer its subscribers? Is there a fee associated with this subscription, and if so, how much? Furthermore, are there any hidden costs or additional charges that subscribers should be aware of? Additionally, how does Bubble ensure the privacy and security of its subscribers' information? Finally, is there a trial period or a refund policy in case a subscriber decides it's not for them?