Is there any way to pay MasterCard/Visa Credit Card bill globally using bitcoin?

[Sithara007]

Or may be pay MasterCard/Visa Credit Card bill globally using a single bank account? Bitcoin can be converted to FIAT in that account.

You can check peer-to-peer platforms such as Localbitcoins and Localcryptos to check whether any of the buyers would agree to pay your credit card bill, in exchange for Bitcoins. But you need to be careful while using the P2P platforms. There may be a few shady characters, who are trying to convert their dirty money to more anonymous assets such as Bitcoin or Ethereum. The risk is lower with LBC, because they have very strict KYC requirements.