The 60 days option is not a subscription but works like a regular gametime block. Some long while back they had different gametime blocks but moved it all to 60 days (e.g. one BNET irl balance card)
The current game time options and payment methods are summarized here:
| Description | Cost (EUR) | CC | PayPal | Debit | Bnet Bal | WoW Token | |
|---|---|---|---|---|---|---|---|
 |
1 Month Day reoccuring Subscription* | €12.99 | X | X | X | ||
 |
3 Month reoccuring Subscription* | €35.97 | X | X | X | ||
 |
6 Month Day reoccuring Subscription* | €65.94 | X | X | X | ||
 |
WoW 30 day game time token (with gold) | Gold | |||||
 |
60 day Game Time Card/Block | €25.98 | X | X | X | X | |
 |
Battlenet Balance (your account)** | Flex | X | X | X | X | |
 |
Gifted Battlenet Balance | Flex | X | X | X | ||
*If you don’t want your Subscription to automatically renew, wait for it to clear the payment (several days), then cancel the Sub on the account. You can do this every month if you like.
**Check the Bnet Balance article for Restrictions and use https://eu.battle.net/support/en/article/25904
Credit to MVP Mirasol.