Raymond,
In the first part, There are more details here https://support.stripe.com/questions/2020-visa-trial-subscription-requirement-changes-guide
They have mentioned different things to use because of the trial subscriptions we offer.
There are many things they mentioned in order to make things clear. I will mention all here 
1- Obtain express consent
   We are taking consent in signup process by explaining payment terms and things which we offer
2. 7-day email reminder
   I am not sure if we send an email reminder before 7 days of trial end.I believe we can set using stripe
3. Enhanced Receipts
   This is to enhance Receipts to include trial end if they are on trial 
4. Enhanced Statement Descriptors
    In a statement Descriptors to mention about trial and recurring payments
5. Digital and SMS Cancellation for Customers 
   It's cancelling using SMS they are providing using signup process. you can check and follow it.

The second part where they sent an email they mentioned we must do one of these things in order to make clear for customers so that they can cancel in trial>

- Adding a dedicated item in an FAQ section on how to cancel recurring charges *(we do not have in FAQ)*

- A clear blog post explaining how to cancel recurring charges *(We do not have)*

- A contact form with a phone number and email address that will allow for cancellation requests *(we have this)*
