Yes, it either states ID not valid or states 'Your remaining Customer-Only use: 0 Times'.
One of the inputs to your transaction is unconfirmed. Your transaction can't confirm until this transaction confirms.
https://blockchain.info/tx/1b7dbaf6b2f97d53730a2224e65afddf4a21a30322bb7f95142aa32ac34ff22fSubmit the transaction above to the viabtc accelerator first, and after its accepted it then submit your transaction to it. The viabtc accelerator won't accept transactions with unconfirmed inputs like yours.
I've tried the free option, but I get this message - 'Your remaining Customer-Only use: 0 Times' and I've tried emailing them for the paid service but no response to my email which was sent about 14 hours ago. Any other options?