Atrocious service - Low to No Feedback - No Delivery

I placed an online order on the 2nd of August for an item with a 7-10 day delivery. The order changed to "packed" within about 2-3 days but then just stayed at that status. I called the helpline to make sure that everything was ok around day 7. During this call a lady informed me that because it was still within the 7-10 day timeframe, all was well and I had no reason to worry, even though the order had just been "packed" for a few days by then. On the 10th day with no delivery made, I contacted the helpline again and was promised a call back with details as to what was wrong(It's now the 30th, still no call) Given the poor service, I then mailed the customer services for makro online on the 15th at 07:56. I followed this up at 15:42 since I had no reply. By the 17th, I still had not received a reply, so I mailed again. Later on the 17th I received a reply "we are following up and will revert" I responded on this stating that it surely cant take this much time to follow up on an already overdue order and that the service stinks. No further feedback was received until the 21st when I suddenly got a mail from Makro asking for more delivery details as the so-called courier "have been trying to get hold of you with no luck" which is very weird since I had no missed calls from strange numbers at all, and certainly no voicemails either. So either Makro or the courier are lying through their teeth. I responded on the mail stating that my delivery address was as per my order, my contact number was correct and as it is my business number, it gets answered. That was the last contact, no phone calls, no mails, no delivery - just poor service, no communication and a blatant disregard of the customer.