As far as the unwanted oil delivery it happened to me about 3 years ago which was the last winter I used a drop of oil. I had an oil co that I had not used for 5 yrs come and top off my tanks when nobody was home. I was not on auto delivery and didn't get oil from this co for 5 years.
I immediately called and after explaining it to the receptionist she said she would have the mgr. call me well after one week no call I stopped in and of course he wasn't there I talked to the receptionist again and was suppose to get a call but it never happened. I kept all records of when I called and went there which was numerous times but never spoke with anyone until I got a late notice with extra fees on the bill. The mgr said it was to late to pump it out because I used some no kidding it was January and the wouldn't answer me for a month.
trying to shorten this up after many more calls from me and visits with no cooperation they took me to small claims court. I had detailed records of every conversation and the magistrate sided with the oil co. and said I still had to pay. I agreed to pay at the discount rate if paid within 10 days and refused the magistrate fees which they agreed upon. I think the total bill was about $700.00. Bottom line the little guy gets screwed
This was the last winter I used oil!