No refund for out of stock items

I placed an online order with Makro and PAID on the 1st of November 2023. Several of the items were not delivered as Makro said they did not have stock. My wife and I have phoned and emailed Makro for the refund for the items not received. The general reply from Makro's call canter is as follows: Your order was delivered. A whole R79,90 was refunded from a refund amount of R605. WHERE IS THE OUTSTANDING AMOUNT OF R525? I can see it on the their website which items were not delivered so why can't they see it?????? THIS IS THE LAST TIME I ORDER ANYTHING ONLINE OR INSHOP FROM MAKRO, GAME OR BUILDERS WAREHOUSE as it is the same call center for Massmart.