Not sure what country OP is in, but try wiring money in to GDAX. If you have a Coinbase account, you have an account on GDAX.
Coinbase (who owns GDAX) is too painful and slow to increase available money from bank accounts and credit cards. Wires are fast, but they do have a fee.
im based in the UK.. but on holiday now in another continent missing out on all the action..