I need more info about free trial subscription 

• I would like to cancel my free trial
• I've signed up for a free trial but can't add a signature
• I have a trial, but I want to switch my trial plan. How can I do this?
• I have a trial, but I have questions. Where can I ask them?
• I had a trial, but it’s been cancelled. How can I get it back / what can I do?
• I'd like to change the level of my mobile trial subscription