Online refund

I have purchased on makro online on 15 December 2022. I purchased a walking ring for babies and they delivered a wrong item from what i have ordered. I logged a call and on 23 December 2022 they collected the wrong item. I have been waiting since then for the correct item that i bought to be delivered. No one is giving me any updates about what is going on, i am the who keeps on calling to check up on how far is the process and when i call i always get stories. At first first they said the supplier is still closed, then after they said they are waiting for feedback from the supplier then i requested for a refund. Now they say i must wait another 10 days on top of the whole month that i have been waiting with no one contacting me on how far is my return process going. I have run out of patience and tolerance and i so so angry because i feel like i being treated like a fool, my money has been with them for the whole month but i am the one who still spend money to call them and ask how far are they with the process because no one is calling to keep me posted. My order number is MAK***