Makro failure to refund cancelled order

Early January 2025 I searched for baby mattresses size 60 x 120cm. Makro Order MAK***. This product came up with the correct size as "mat", and I thought that "mat" was short for "mattress", and I ordered the product. On the delivery date of 10 January 2025 this bathing mat was delivered. I refused to collect it as it was not what I want. I cancelled the order by phone ***. I phoned that numer 4 times already to cancel the order and to get a refund. Every time the Operator/Agent assured me that the order was cancelled, and that I will be refunded in the next few days.

It is the 4th March 2025, and still no refund. When I called the above mentioned number the Agent told me that the system still show "delivery failure". That means that all three the previous Agents **** to me, as they claimed the order was cancelled. I was phoned once ba an agent after I sent an e-mail to hear me out, made another empty promise, and vanished. None of the Makro contact e-mails and customer call numbers helped me. Just empty promises