It sounds like you phoned in your order. When the pixxa arrived, you should have been presented with a credit card slip which needed to be signed. Said slip would also have had "Tip" and "Total" lines. Did you fill these out completely? Did you politely ask why the delivery took so long and give the driver a chance to explain?

The delivery charge does NOT go to the driver. The delivery charge is merely a "convenience surcharge" that goes into the coffers of the store. The drivers still have to pay for their own gas, insurance, and wear and tear on their vehicles.

Please do NOT not tip the driver merely because the store owners are too cheap to be up front about their charges. The drivers work just as hard, and under much more dangerous conditions than just about any wait people out there.