Combining 2 free Apple TV subscriptions

Hello,

I have an 1-year free subscription for Apple TV (with an iPhone purchase made back in March 2021) which expires in March 2022. I just purchased an iPad mini 6 which includes a 3-month Apple TV, is there an option to add 3 months in current subscription, extending it to June 2021? I would be a shame to lose these free 3 months :(