-You can connect to discord on your account settings and then press on the ''Discord chat'' button at the left!
-If that doesn't work, go to your account settings and connect and disconnect your discord! That should solve it!
(If you want to cancel your subscription remember that your roles will be revoked, so it's better to do it a day before being charged so you'll get the most out of what you paid for!)
(You'll be charged every 30 days aprox since your first payment)