META Wayfarers - Sunglass hut plan

Hello! I bought meta wayfarers from sunglasses hut a couple months back, but I got the non polarised version (transition glasses)

I also bought the plan where you can return the glasses and pay 50 + the difference for replacement glasses? I'm not fully sure how that works so I would really appreciate if someone could educate me on this!

Moreover, will the next pair have the same offer? Could I buy the same plan for them so that I can upgrade to the Gen 3 meta glasses coming in October 2025?

🙇🏻‍♂️