Annual plan activation fee from monthly

Hello everyone, purchasing my Inreach Mini I activated the freedom subscription, paying an annual activation fee of € 29.99.

Since I will probably be using the Mini for several months during the year, I was interested in at an annual subscription.

In this case, will I have to pay the annual activation fee of € 24.99, or will the one made withe monthly subscription be valid?

I don't think it's fair to pay an annual subscription twice to go from monthly to yearly.

I await your reply, best regards