Bad customer service

I sent an enquiry to eyewear SA and called them on the 6th of February 2015 for an Adidas Sunglass. Yakoob said they will receive stock by latest 12 Feb 2015 but will let me know. On the 11th I ask what the status of the stock delivery is. The reply was that it will be delivered on the 12th of Feb. On Friday 13th of Feb I called about 50 times and only reach a voice mail. I drove from Sasolburg to Johannesburg to go and collect the glasses. Only after 13:30 when I called someone answered the phone. The person said he will call me back to confirm that they have the stock. With the return call he said they have it but it is in Nigel. So I drove from Johannesburg to Nigel to collect it. In Nigel they had the sunglasses but not the insert for prescription lenses which is the main purpose for me buying this glasses. I payed for it and they said they will get the insert by Tuesday and I will receive it Wednesday morning. Till now I have not received any thing I called Yakoob on Tuesday to ask for the status of the delivery, he was very unfriendly to me told me I am wasting his time. is this acceptable customer service?