Blockchain is known for their security measures and they are aiming to provide you with the best possible security measures. 2fa gives you an extra layer of security and gives you extra protection. But sometimes 2fa doesn’t function properly. If yes then Blockchain helpline numberis the best platform to find all the answers pertaining to your question. Get in touch with a representative via phone call and find the remedies that you are looking for. The experts at Blockchain are knowledgeable and skilled. They are always available to help you out.