How long then how many months
With the only sensible subscription, it lasts 4 months.
4 × 11.99 = around 48 euro.
The voucher itself, years
the amount is time-limited after 3 years at the latest, gone. E.g. Issued in 19 - after 31.12.22 the redemption will be refused.
depends on you, what does a monthly subscription cost? You divide that by the 50 …
With the basic contract, you can look for 6 months.
It depends on which subscription you have. With the basic subscription 7.99 it is about 7 months.
3 years maximum.