I always pay manually because autopay may fail very last moment and I wouldn't be able to renew smoothly. And I highly suggest it to everyone. You still get the autopay rewards.
Couple of hours before renewal your status changes to expired, don't worry you're not suspended, if everything is working just ignore it
After money is withdrawn by autopay (or in advance manually by you) it may take up to 16 hours for funds to be consumed by your plan, if everything is working you can just ignore it.
If your service stops working contact the moderators through Simon.
For the pass change, try using incognito mode and clearing cashe, or try on couple of hours, website can be flickery
