Cancel the subscription if a user doesn't have any nodes and services by the end of trial

[bohdan-shulha]

Using the human's "forgiveness" feature makes no sense to get money - let's be friendlier than big corps. :)

4 hours before the trial end, cancel a subscription and E-Mail a user. Propose to join Discord, leave feedback and give a promocode.

[bohdan-shulha]

As trial doesn't require a credit card now, we can safely close the ticket.