Runbox supports Bitcoin payments via the payment processor BitPay. In order to pay with Bitcoin, you will need a Bitcoin wallet. If you don’t have one already, you can set one up with BitPay.
Once you have a Bitcoin wallet with some funds, you may proceed to Runbox Payment Options to subscribe to Runbox using Bitcoin. After selecting the desired products, select “Pay with Bitcoin” as the payment method.
Note that you should not use your Runbox email address as the BitPay contact address. In case there are any issues with your payment and your Runbox account is closed, BitPay needs to be able to contact you.