Transaction Error: An invalid response was received from remote host, see provider response code/message for details

What does 'An invalid response was received from remote host, see provider response code/message for details' mean?

This error is specific to the USSD GTB 737 channel. It occurs when the customer does not complete the USSD transaction on their mobile phone.

What can I do about it?

Kindly have the customer retry the transaction by dialling the USSD code to complete the transaction.