Why when I have paid for my subscription do I CONTINUALLY get notices to buy more security????

Why when I have paid for my subscription do I CONTINUALLY get notices to buy more security???

These are a fact of the free version, but can be removed in paid versions of Avast - AvastUI > Menu > Settings > General - Personal Privacy and you can uncheck them, ‘Show offers for other Avast Products’ and ‘Show offers for 3rd party products’.

Also check the AvastUI > Menu > Settings > General - Notifications, I would suggest using the Pop-up Notifications treatment - Limited Mode.