Terrible customer service and delivery

I ordered coin cell batteries online from Makro in January. The batteries arrived but had already expired last year (pathetic considering that coin cells have around a 10 year expiration date). After a lot of back and forth, a courier collected the expired batteries with the promise of replacements. After more back and forth (even Makro not knowing that a courier had collected the items) I was told that I would be refunded due to stock issues. This is not ideal as I need the batteries. As of writing this review I have still not been refunded (I was told a refund would finally take place early in April) and still do not have the batteries. Along with this Makro did something to their website so there is no sign of the order itself. 4 months to sort out any kind of problem is unacceptable.