Over-Paid VAT to HRMC

Hello, We over paid VAT payable on our last quarterly return, The payment was sent with the return first, and then by mistake it was made again on the same amount . It is substaial amount. Could some one help in what is the process to claim over payment to HRMC looks like.

Hi BVL2023 Ikram,
Please contact our Helpline on 03002003700 so that we can release the credit for you.
Thank you.