Before my 4:00 PM check-in I received a call from the Summit county Mt. Resorts accusing me of checking my bags in early and threatening to charge me a fee. I told them that I was at dinner with my children and we haven’t even gone near the house yet and our bags were in our car. We get to the house around 6:30 PM to find someone else’s belongings and groceries were in the house we rented. I called Summit to request a pick up of their belongings and ask why someone else’s things were in our house but they said they had no clue. they also didn’t do anything to change the door code for the safety of myself and my family. That evening I noticed they were groceries that I had not purchased in the downstairs refrigerator. I called Summit again to let them know and they told me to either eat the groceries or leave them for housekeeping when we checked out Really!?!? Why would I eat someone else’s groceries? The next day the other family ferociously knocked on the front door looking for their belongings. I told them to call the Summit and they proceeded to yell at me so I walked away and called Summit again. I Asked summit to pick up the rest of their things and deal with the mixup. Apparently housekeeping let these people in the house early to drop off their luggage and groceries . Later I found out that this other family rented a house on the other side of town but somehow showed up at the house that I was renting. I lost a day and a half of my vacation with my family worried about the confrontation with this other family and them possibly having our door code. The management company did nothing to assure the security and safety of my family, they were extremely rude, and non-accommodating. They argued with me and never apologized for the situation and continued to blame everything on housekeeping. Housekeeping that’s part of their company. The house was great but I’m so disappointed in the situation and the way we were treated by Summit county Mountain retreats. It’s too bad because I would stay in this house again; however, that will never happen due to the horrible customer service and lack of safety for myself and my family. Additionally, check out was at 10:00 AM and one of their maintenance men, without knocking, opened the door at 9:30 AM while we were packing and getting ready to leave. Thank God I wasn’t naked. Overall this was the worst customer service I’ve ever experienced in my life.