http://parcel.dhl.co.uk/?gclid=COXlvO_118QCFW-WtAod40AADg is premium courier service ... Not sure where you are ordering from, but a lot of retailers give you the delivery option at the checkout process...
Standard Delivery or Next day, but if you want a text you will need to pay for the premium service. Getting a text an hour before, means you don't have to hang around waiting all day.
I use DPD myself when I can, they text you the day before to say a parcel is on it's way and again an hour before it's due to be delivered.