Sol da Nave

I was looking for the cheapest possible place in Porto and came across this one listed at 3€. There was only one spot left, so I booked it, then got curious because I hadn't seen a Pelegrino Alberge this cheap anywhere on the Camino. I found out the usual price was apparently around 70€ or so. It didn't seem like someone's spare room offered out of kindness, so I thought I should check with the owner in case the room price had been set to 3€ by mistake. I sent a message and got no reply, so I called. A woman answered but didn't speak English, then passed me to a man who spoke a little. He spent about five minutes looking up my reservation. Once he found it, he started shouting at me. I couldn't understand what he was saying, so I politely asked whether 3€ was a pricing error or if they were just having a good week. He shouted more, with bits I couldn't make out and something about China. I still don't know what he wanted. I could have just kept quiet, but I was trying to let them know in case there'd been a mistake with their pricing. I'd also seen other comments saying the man tends to yell at people. The whole thing felt sketchy and left me feeling unsafe. I had to pay 1€ to cancel the reservation, too.