Is there change of 25 euro Netflix vouchers?

I'm using Netflix and I always get a v25 euro Netflix voucher and 25 euro-12 euro are 13 euro so I still have enough left to get another month for another month so there's change if so someone can explain to me how to do it gets.

So is there change?

I think the money will be automatically offset against the following month, but I'm not 100% sure.

Yes, that is taken into account and if it is not enough for the entire month, then for as many days as possible.

Thank you very much

Thank you very much