You will be able to view this on your account.

Click My Account.

You will see Recent Orders

At the bottom of the order you will see that this is processing and there are four stages greyed out.

Once the order has been picked this will highlight for you.

The processing will also change to in picking or picking. 

If at any point your order states paused this is most likely due to the picker going on break or lunch. As we have a live system view for you.