Horrible customer service

I am so frustrated with TFG online shopping. I placed orders on 23 and 24 November 2020. Both orders have been handled so unprofessionally and with pathetic carelessness: 1st order: One item still has not arrived, it has status "with courier". I called about 8 days later to find out and was told by the consultant that the courier cancelled it without any reason. nothing was communicated to myself because every other item in that order arrived,I was always at home waiting for these orders even though they arrived late. 2nd order placed on 24 November: a number of items was cancelled more than a week later with no reason (remember their delivery is between 3-5 working days so they say), I emailed Tfg and did not receive any response,then I decided to call. When I called the consultant told me that it might be because the items are not found anywhere in stock in all SA stores,then he confirmed that the rest of my order was processed and was soon to be dispatched. I asked why it still appears as in stock online and I am sure I was one of the early shoppers when the sale started. A couple of days later I called again follow up on this order,I was then told my whole order is cancelled,when I asked why,the answer was "nothing is written here ma'm but in most cases orders are cancelled when there is no item in stock and is out of stock in all SA stores. I asked why I was told these items were processed and would soon be delivered in my previous call but now only when I call weeks later I am told it's cancelled,I didn't get a proper answer (what's going on here????)Don't they think I would have gone shopping in another store that was more interested in delivering to their customers and stop treating them like they are doing them a favor?? I am now suspecting that my items in my order were all taken and given to someone else, someone "known" otherwise nothing makes sense for me in this case. Why be an early bird for black friday and buy bulk items when they will be cancelled a couple of weeks later and other customers who bought after you getting the same items you were told were out of stock?? Couldn't they communicate within 3 days atleast so that I don't sit around and relax thinking my shopping is sorted??? What is so interesting is that one item which they said is out of stock in all SA stores was in abundance in Markham walmer Park. What's going on here??? I have an item I have been waiting for since 24 November and the status still says "with courier". I called on 14 December 2020 to find out the status and the expected delivery date. I sat at home hoping for the delivery,nothing came,even yesterday. Today I am travelling with a huge disappointment without this item. I am now forced to do last minute shopping to substitite the item I needed for an occassion that I am suppose to attend on 17 December. I am not wasting anymore of my time sitting at home waiting for an order which I don't know when it will arrive. This kind of service is horribly poor.