Online order cancelled by Edgars after no delivery of goods

I placed an order online on the 11th of October 2019. Thereafter, I received a sms stating that the order had been collected by the courier on Tuesday the 15th of October 2019 and would be delivered by 5pm the same day. No order arrived, however, on the Wednesday (16 October 2019), I received another sms to state the the order had been delivered to my listed address at 2pm on Tuesday the 15th of October 2019. I phoned the call center in this regard and they told me that it was the courier that had sent out the message erroneously, and that it happens often. I was told to wait until Friday (18 October 2019) and phone again if the order had still not arrived as it takes 5 -7 working days. On Thursday (17 October 2019), I once again received another sms stating that my order had been delivered to my listed address at 12pm on Wednesday the 16th of October 2019. I STILL had not received my order, and there is someone at home all day long. I then phoned the Call Center again. They apologized and said once again that it was an error on the courier's side and that this happens often, and they once again reiterated that it does take 5-7 working days. I waited until Wednesday the 23rd of October 2019 (Working Day 8 after placing my order), and they apologized and said that they would have someone contact me by no later than 5pm that day. I waited and finally called the Call Centre AGAIN on Thursday (today - 24 October 2019 - Day 9), to ask what was happening. I was told this time that my order had been cancelled because of a system error. I asked why I hadn't been told about this, but the gentleman didn't really have an answer. I was then told to re-order online - sure! As if I haven't learnt my lesson by now. I then checked with him to find out if my Edgars Account had been refunded with the purchase amount - it hadn't, and he needed to send this through to the accounts department. I am absolutely flabbergasted and disgusted that in this poor economy that a huge corporation couldn't give a damn about providing a decent service to their clients. I have been a client of theirs for 20+ years. Why are they still using such a useless courier service if this is what keeps happening? Why couldn't someone come back to me to give me feedback? I will now wait to see if my account is refunded with the billed amount. Absolutely disgusted :(