Can I sue Fed Ex for causing a package to be almost 20 days late?

Question Details: I sent a package to be shipped in one day to a location to and from the same state. It has taken almost 20 days to get there and it still hasn't arrived and me constantly calling fed ex. My rent was included in that package. I'm not sure what's going to happen now to my lease now. I documented everything. I'm 400 miles away from home for a while. I couldn't trust the usps in my home town to deliver the package the month before, because they stuck a certified package in my POB instead of giving it to the apartment manager. That was a nightmare also. If I loose my apartment of 5 years, fed ex needs to pay for that...right?

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