Issues with Loot vouchers bought from Momentum Multiply

On 8 January 2021 I place an order on Loot.co.za. Approximately 2 weeks later I was informed Loot has cancelled the order as the item could not be sourced and I was refunded by means of a credit into my Loot account. As Loot did not have any other graphics card suitable I requested a refund into my bank account. Due to the fact that I paid with Vouchers bought from Momentum Multiply the refund had to be approved by Momentum. So far I have been refunded R2,286,90 of the total amount of R3,969.80 owed to me with no indication of when I can expect the balance. All of this was caused by Loot being unable to provide the item I ordered. I’m want Momentum Multiply to finalise this refund now. I will not use Multiply vouchers again because when the supplier such as Loot cannot fulfill an order the Momentum client, me, is then stuck between Momentum and Loot trying to get refunded. It is not acceptable.