Bad and slow service

I've had a really bad experience ordering from Samsung. I placed my order on the 13th of June. Had to follow up twice because no progress was showing on the order tracking, it just kept saying order confirmed. When I followed up the second time, the consultant was a bit passive aggressive and told me that they were still within the delivery time (they had one day left), even though I explained to him that I was just following up because there wasn't any progress showing on the order tracking. He then informed me that they were having issues with stock, but couldn't even tell me with which item/s. Then on Monday, the 24th of June, someone phoned me saying that they were struggling with stock and is still searching for my items. On Friday, the 28th of June, their courier company phoned me, asking if I am available for a delivery on Saturday, I said yes, but no delivery happened and I was home the whole day. THEN, today, Monday the 1st of July, I received a delivery, with ONLY my washing machine and stacking kit and no tumble dryer. Phoned Samsung, now they need to log it as a missing item and start the process from the beginning, so it will take another 1 - 7 working days for delivery. This is pathetic service and I am very unhappy.