Question about Arlo Ultra 2 Spotlight camera set of 3

I bought an Arlo Ultra 2 camera set and have now benefited from the free trial subscription for a month. Before this subscription expires, I have now purchased an annual subscription and this subscription is also visible in the Secure App, but I am not able to add my cameras to this new "Secure Multi Camera" subscription as requested and my trial subscription expires on 1 August. Have you also had these problems and if so can anyone help me?