hi bro, it not his fault at all. After all he was a beginner and it is normal that he don,t take the width of the tank into consideration whether can go thru his door or not. Hi plum, i know it is heartache tt you spent on delivery and taking a day off, but let learn from this mistake and be more careful in future. You need to sell and the highest offer tt people offer you but u can't ask for the price u bought plus the delivery u paid. I would suggest tt you keep the tank and re engage another company to carry thru your window.