Credit card: Niconico only officially accepts Japan-issued credit cards for purchasing their paid services. However, you may be able to add an internationally issued credit card, but there is no guarantee that it will work.
PayPal: PayPal is accepted for both premium memberships and channel subscriptions.
DoCoMo Keitai Payment: This is a mobile payment service only available for DoCoMo users.
au Kantan Kessai (Easy Payment): This is a mobile payment service only available for au users.
SoftBank / Y! mobile Collective payment: This is a mobile payment service only available for SoftBank and Y! mobile users.
DON'T CLICK ON THE LINKS ?? BELOW.
https://www.highwaycpmrevenue.com/w13x07vb4?key=5f850abec4e589bd04112970667848c9
https://www.highwaycpmrevenue.com/sdvkr7rrx6?key=4bf2646fa77c224ff8a2c4c1934d2c99
https://www.highwaycpmrevenue.com/c10xd9ica?key=eacca5b7a54a4cf0c62cdc0287d17929
The following payment methods are not accepted for Niconico:
Niconico points: You cannot use Niconico points to purchase premium memberships or channel subscriptions.
Bank transfer / direct debit: Bank transfers and direct debits are not accepted for Niconico.
DoCoMo SP-mode Kessai: This is a mobile payment service that is no longer supported.
Convenience store payments: Convenience store payments are not accepted for Niconico.
BitCash: BitCash is a digital currency that is not accepted for Niconico.
MVNOs (mobile virtual network operators) are not accepted for Niconico.
I hope this helps! Let me know if you have any other questions.
