Threatening behaviour from delivery driver, after incident threatened to take away my new cooker and then refused to unpack, inspect and take it in the house as has been paid for. Reason being could not deliver a previous item as they were not home so had no space for my old cooker despite having paid for recycling, so I was upset and asked when they would take it. Whilst calling his office he was very rude and arrogant towards me, my teenage son heard him shouting and came downstairs and asked “why he was being a twat to my mum” he then proceeded to run into the house towards my son shouting “you what” and trying to hit him by attempting to push past me, a 56 yr old woman with osteoarthritis. I threatened to call the police which he replied saying “you can call them I don’t care no more, you’ll do nothing” and that I had no proof of anything. He then taunted being rude as he walked to the van and the young lad with him decided it was a good idea to stick his middle finger as they away, despite being silent the whole time from when the arguing started. I was left shaking and very stressed and upset due to the fact this man tried to physically assault my teenage son. I called customer service and they said they will take it up and look into it.