Whilst the application is very easy to use, the last section of the process when there an amendment from the AIRTAX team (to the bank interests for instance) is done, and the customer need to revise it and approve it does not appear to be straight forward enough. Consequently the user does not know if it was accepted. - when there is a message asking to pay again, that should not happen - This delayed my submission by a few weeks and required to email the support separately to understand that nothing had actually happened and I needed to pass the 'payment stage' again.Not logical according to me. Furthermore, providing the customer with an estimate of the average timing of when they could hear back on the validation of the lodgment with the ATO appears to me to be a 'must' After all this is legal tax matters so delays can be critical on the individual's responsibility. Overall the response from the support team was clear and in a timely manner. I wish there was a process to follow up on pending submissions like a reminder push notification to 'ask the customer' if they forgot about their tax submission after 2/3 weeks. Ideas for improvement, Thanks