I've looked at the documentation for our SR+ and can't find any reference to the Premium Connectivity trial. I do know I initially thought we didn't have it (used to tether the car to my phone) but was set right at a visit to the service centre after a flat tyre.
At that time I thought a year was mentioned, but that might not be right. What I can confirm is that service centre visit was October 15, well over 30 days ago and we still have it.