Purolator

I ordered an item. it was shipped by purolator. XXXXXXXXXXXX is the item number. I got an email saying it would arrive Tuesday Sept 18.
I ordered an item. it was shipped by purolator. XXXXXXXXXXXX is the item number. I got an email saying it would arrive Tuesday Sept 18. I waited ALL DAY and checked hour;y to see when my parcel would come. I waited until 6:15 pm when suddenly the status changed to "Undeliverable" - the driver's shift ended before he could get my item to me. This is the second time they have done that. I pay for express shipping and get this? I have a brain injury and 6 different therapies. I had to CANCEL 2 therapies to wait at home all day - one charged me a $50 cancellation fee!. I called after 6:15 and no one gave a care. I feel they didn't honour the contract which was to deliver my parcel in an express fashion. They have failed TWICE with me to meet there contracted delivery time. I'm sick and tired of this shoddy service. I pay to get my parcel on time, being understaffed at purolator is not my problem. I got all sorts of excuses but none them were MY problem. My problem is I didn't get my items and that's all my problem is. Their problem seems to be apathy and being understaffed. I don't care. I want my contractually obligated delivery when I'm promised.