So the billing&upgrade section , and then I see.....

But there is a problem. I will not use PayPal.
Any other payment source or method allowed?

In case of upgrading from a free account, a few questions:

Blomp let the user pay each month on his own or does Blomp require auto-pay?

Does Blomp have a five-year subscription plan?
Does Blomp have a one-year subscription plan?
Does Blomp have a life-time subscription plan?