AC installer flooded our electricity breaker box with water and €900 damage and won't pay it

So we had new ACs installed in our house.

Then a few weeks later we heard a sudden POP and fire smell. It comes from the breaker box and we check and it’s flooded with water.

The AC guy had installed the outdoor unit on the roof with an tube that ran the electricity for it down into the house. Anyone knows you should install that tube horizontally or better with an S shape so water can never get in. He didn’t. Rain water flooded our breaker box and short circuited everything. The breakers all melted away! Very dangerous too.

Our electricians came to fix it as an emergency, they were shocked by the level of amateurism. When the AC guy also came, the electricians were as polite as they could be but essentially politely said “what the fuck did you do”.

In a true classic of Portuguese culture, the AC guy did NOT take responsibility and said it was not his fault and not his problem and brushed it away.

We had to pay €900 to replace the breaker box, the wires, and all parts completely. The AC guy wouldn’t pay anything nor take responsibility. “It happens”.

Later when we asked the AC guy to do more work (we don’t have much choice in Portugal, there’s a shortage of workers, so good luck finding another AC guy that actually shows up), we asked him for a discount because he flooded our breaker box for €900. He said okay I will give you a €300 discount for it.

😂😂😂