http://linode.mono.ca.gov/common-reasons-why-payments-are-unsuccessful-coinbase-because-insufficient-funds-why-wont-my-coinbas

http://linode.mono.ca.gov/get-coinbase-help-through-live-chat-does-coinbase-have-live-chat-support

http://linode.mono.ca.gov/how-long-does-coinbase-kyc-verification-take-coinbase-kyc-verification-take-new-users-payment-declin

http://linode.mono.ca.gov/coinbase-get-money-back-crypto-scam-will-coinbase-refund-if-scammed