We booked and paid for an air-conditioned penthouse apartment. It was a hot summer's week. After the booking was paid for, we received an email from Matt (the host). Due to what was allegedly a double booking from the host, he (Matt) offered us an "upgrade" (in his own words). He offered a bottom floor apartment which he said was just as good and had a swimming pool. We had to checkout in a few hours from an excellent airbnb property so without checking further, and choosing to trust Matt, we accepted his offer. When we got to his property, the "upgrade" was from a 3 bedroom penthouse with air-conditioning to a bottom floor apartment with no air-conditioning. As I had a 2 year old with me, this was not acceptable. When we shared our concerns with Matt, he was good enough to turn up at the property. However, when he got there, we felt he did not listen, was defensive the whole time and did not care about our concerns. So in future, please check with Airbnb before accepting any offer from a host, especially when the offer came after it was paid for. Airbnb was kind enough to help resolve this issue.