Makro not paying full refund

Placed an online order on the 24 Jan 2025, some items were cancelled by Makro the value of these not delivered items are R311.60. received a refund today 30 Jan 2025. to the Value R285.75. so we can see how they are *****ing money, it is the first time I'm reporting this , but is actually the second time the refund me short.