3 Issues with 1 Order

Makro's customer service center is shocking. I have tried phoning & emailing multiple times, but they don't seem to care. I put in an order on 26th November for some alcohol. I have had 3 different issues with the same order!

It was split into 2 deliveries, the first arriving pretty quickly (1) They substituted one of the items (for the smaller version) without my consent, but the invoice was not updated & I wasn't refunded the difference.

I received the second part of my order on 10th December (2) It took so long to deliver that one of the items went out of stock & was cancelled (3) Instead of the case of beer I ordered, I received 3 six-packs, which I refused to accept, and sent it back with the Courier

Now my delivery is listed as delivered to customer. I have phoned and emailed the helpdesk and still do not have answers as to when I will have my money back The initial cancelled items are reflecting that I will be receiving a refund, but the refunds for the original substitution (1) and the item I did not accept (3) are nowhere to be seen?