About the payment method, the progress is as below:

1) Click into http://bigdatacoin.one/# to fill in a form about your purchase;

2) Fill in your e-mail, purchase amount and payment address (Bitcoin or Ethereum);

3) Referring to your request, a confirmation letter will be sent to your email box from our central system;

4) Follow the steps of payment delineated in the email, and complete the payment process with your wallet;

5) The second confirmation e-mail will be sent to confirm the details of your purchase.