Wrong order delivered and money taken from my account

On Saturday the 29th of June I placed an order from chicken Licken Protea Glen for 3 X Rock my Soul Meal @ R260.70 and I didn't even got the meal and I complained and was refunded only R162.90 so I will like to find out why am I not being refunded the full amount that I payed? I want all monies in full just like I payed them, Uber eats owes me R97.80 and I want it