Pathetic customer service

It beats me how soundselect has survived this long with their online business! It's the second time now that I have given them the benefit of the doubt. I have placed an order online on the 19th of September. I received an email stating my estimated delivery date would be between 23-27 September. I was informed a few days after my oder that one item I had ordered was out of stock. I had rep**** to the emial advising what to replace the out of stock item with and that was the end. My emial was never responded to. I followed up with two phone calls to speak to the guy handling my order, he was busy both times and never returned my call. I followed with around two emials and finally got a reaponce. Fast forward to date and my order has still arrived nor has he returned my call or emailed me regarding my replacement on the out of stock item as promised. The sad thing is I have found many items that I would like to purchase and took a chance with just three items first when giving them a second chance, so I ask how on earth have they survived online for this long??? They clearing don't have the capacity or customer skills to deal with online orders!