Poor service and no delivery from Adidas

I ordered an item on a Monday 25 June, 2018 on the Adidas website, I have received an email on 29 June that it is on its way. It never arrived. I called and spoke to Nuraan, she told me the delivery failed, even though i made a point not to leave the delivery address on the day because im expecting a delivery. Nuraan then assured me it will arrive on Monday. Monday came and I received an email to say the order has been cancelled. I called in and Ferdoz assured me that the cancellation happened erroneously and the order is on its way, it will arrive on latest on Tuesday. Tuesday came and I am told that the delivery failed again. I informed her that i was at the delivery address all day and with phone accessible and there was no delivery for me. Ferdoz then put me through to her superior, Fadwa Adams, she has assured me that she will explain to me what has happened by 9am on Wednesday 4 June 2018 and sort it out. This is a big inconvenience for me because aside from expecting good service from a "quality" brand like Adidas, you would expect they would have more care for their clients. I haven't left the office since last Friday because i'm expecting a delivery guy who i'm assured will come and then sends head office a response that the delivery failed without any explanation. Now it looks like i'm the one who makes the delivery guy run around but it's him who never came to the agreed address.