Makro worst online delivery service and refunds

I bought a few items from Makro online on 23 December, for delivery, by 7 January 50% of the items were cancelled due to not in stock although they were marked in stock on the website. On 19 May I am still waiting for some refunds on the cancelled items. In more than four months they requested bank statements and a copy of my ID to verify it was me although they had already refunded some of the items to the bank account I used to purchase the items. The issue was escalated to their Finance Dept nine times already and I am still waiting for a refund on order MAK***. I will never purchase from Makro online again and would advise to be very careful of their website and items in stock and refunds. Worst service I ever received from an online delivery agent.