Q: How to make the payment for a journal that uses Bitcoins?

Not all debit/credit cards are capable of making transactions in Bitcoins. There are some special Bitcoin debit cards that allow you to add funding in Bitcoin to your card’s prepaid balance and make payments in Bitcoins. However, you will be charged a fee for every transaction that you make in Bitcoins. 

I searched online and came with a few sites that will give you information about the commonly used Bitcoin debit cards:

• All 4 Active Bitcoin Debit Cards for 2019 Reviewed and Compared | 99Bitcoins
• A complete list of Bitcoin debit cards for 2019

Having said that, I think you should first write to the journal explaining that none of your cards support Bitcoin transaction and ask whether you can make a payment in regular currency. If they agree, your problem is solved. If they don't, you might have to buy a Bitcoin debit card for this purpose. Bitcoin debit cards can be both virtual and physical, and often, the virtual ones are available instantly, so you can buy them and make your payment without any delay.

Related reading:

•  Should I withdraw my paper if the journal has sent incorrect bank details for payment?
• Manuscript status showing unsubmitted even after having paid the article processing charge