Terrible Online service and also call centre

I started an online shopping session reserved my delivery time and date, suddenly my booking disappeared and I was still shopping. <br> <br> So I decided to call the call centre and without even bothering investigating what is going on the agent tells me that I spent to much time on the site and it by default cuts off my booking.<br> <br> So my question now is, without investigation how does she know how long I was on?<br> Why is she avoiding me to speak to her manager?<br> <br> <br> Also it would be appreciated if the agents can be much more approachable and not aggravating.<br> <br> Now the whole point of the online service is defeated and once again I will be going to the mall.<br> <br> Very disappointed to say the very least.<br>