We had to ask for a plumber on our second day as the shower unit overflowed, there was clearly a blocked drain. The host replied promptly to our message and sent a plumber that day. All appeared to be well. On our last day we awoke to find the bathroom inundated with sewage water which had flooded the entire hallway leaving a deep puddle of foul water. The whole apartment smelt like a sewer. We could not reach the host by phone, text or message via air bnb. We cleaned up the mess but were unable to use the facilities or kitchen for fear of exacerbating the situation. On returning home I messaged the host asking him to contact me re. the problem whereupon he accused us of throwing female sanitary products into the toilet and blocking the drain with our misbehaviour as he put it. None of my party uses such products nor did we block the drain. No apology was offered and he repeated his accusation when I already told him we did no such thing. An unpleasant experience and rude treatment.