Diabolical parts service from Kia Bryanston

Kia Bryanston may have a Gold award for best Parts service delivery, but it is a worthless piece of paper and don't believe a word of it. I ordered parts for my 2007 Kia Sportage and was told it would take 21 working days for them to be delivered. Disappointing, but understandable given the age of the vehicle. However come the 21 working days and no word from Kia. 3 days later I drop in to be told that the parts would only be in on the 5th of December. Come the 9th with no call I drop in again to be told the parts were still not there. I was promised a call in the afternoon with an update and that didn't materialise. On the 12th after a complaint to the Parts Manager and the Dealer principal I was promised an answer and 24 hours later nothing. Only threats of a ******** complaint have managed to get the blockage moving (hopefully but I won't hold my breath)