Bad customer service

I recently had a parcel of mine from homemark delivered by Fastway. I didn't receive any message that the package will be delivered that day or any other day for that matter. Your courier personnel called about 3 times without getting a response from me. By the time I see missed calls I called her back. She was very rude telling me how easy would it be for her if people just answered their phones. I tried to esplain to her that I was not even alerted that the parcel will be here so that I can keep an eye on the phone, she told she always has her phone with her so she never misses any calls... We had an exchange of words but anyway I got my parcel. But really if that's how you do business your customer service is the worst. You need to get your employees some training and you need to send people alerts so that they know when to expect you to avoid such drama.