Downgrading not happened

I downgraded our package to the free version in mid 2017. But you did not do it. What happened?

I am not sure what would that happen. If you have downgraded your subscription then it charging should have stopped.

I can see that your account is scheduled to be downgraded on April 17th, 2018.

You can also downgrade your account on the PayPal website.

How do I cancel an automatic payment I have with a merchant?

Here is how to cancel an automatic payment with a merchant:

1. Click the Settings icon next to "Log out."
2. Click the Payments tab, then click Manage pre-approved payments under "Pre-approved payments."
3. Select the payment you'd like to cancel, then click Cancel.

A subscription can be canceled up until the day before the next scheduled payment in order for you not to be charged.