Unfortunately my expectations were not met by the ...

Unfortunately my expectations were not met by the store. I ordered and paid for a $2,200 custom system on 30 June 2020. Customer rep advised the system would be ready for dispatch on 3rd July. All items were in stock when the order was made. I sent 3-4 emails (1 on Friday, 2 on Saturday plus left 2 messages on their page on fb - all with no response at all) enquiring about the status of my order because I didn't receive any notification after i made the payment. On Monday (July 6th) they finally responded saying that the system was about to enter the build queue on Monday or Tuesday (when it should already be in my house!!!) but the mobo I ordered was now out of stock and that i should replace it with another one in order for the build to move forward. I said that this is unacceptable as at the time of order all items were in stock! Rep started making excuses about some other order's mobo failing so they had to replace it and then there was no mobo left for my order...unprofessional excuses...the worst thing is no one bothered to notify me about all this! Long story short, bad customer service, no communication at all, I had to chase them up all the time, very slow to respond and from my experience the website 3-day assembly and dispatch claims (when everything is in stock) is totally misleading. Asked for a refund and will shop somewhere else. I found them totally unprofessional and will avoid in the future.