Upgrading from Protect Basic to Plus

We have had 1 device on a Protect Basic plan for years.  We just got another device that we want to save videos on.  We pay annually for Protect Basic. I selected “Upgrade Plan” and agreed to a 1 year subscription.  This would then cover all devices for twice the price. But…I still have my Protect Basic plan?  What kind of scam is that?  Why didn’t my plan “upgrade.” My 1st device is now covered on two plans?  That’s not an upgrade, it’s just adding a plan!  When I tried to cancel my Protect Basic plan it said it would delete all videos and events from our years old device.  Uh no! What in the world kind of “upgrade” is this?  How do I retain my old plan’s videos and actually upgrade?  And why am I paying for two plans to cover one device?  And why is my annual fee the full amount, when I just paid for 1 year last February?   None of this makes sense.