Ring Lifetime Subsription not Honored

I have been a valued member since it all began in 2015. When Ring started there were issues with the doorbell. Because mine had been returned a couple of times, Ring gave me a lifetime subscription plan. I was grateful and have been with that free plan up until last week. I started getting a trial period. When i contacted Ring customer support they advised that they couldnt find my lifetime subscription plan and i would need to provide proof. I told them that i didnt save any proof from 2015 but to look at my account and see that i have not paid one dollar. Customer service would not help me. While im not complaining because i was given something good, what is the purpose of lifetime subscription if it doesnt last a lifetime? What happened to Ring customer service? It used to be so good. Now i dont get a straight answer and no response to emails. Thinking i will write about my issue to corporate not because of the money saved but because of the principle.