We submitted a return for a client through VitalTax bridging software on 20 September 2019. It was for the period 1 June to 30 June 2019 and was therefore late (due to a mix-up following a change in stagger periods). We have confirmation through the software that the return was successfully submitted and the amount payable has been taken by direct debit. However, the client has received a notification dated 19 October 2019 stating that the return has not been received and that they have assessed a different figure. Does anybody know why this has happened and who we should contact?