New Lelit Bianca not functioning properly

Hello everyone,

I bought a new Lelit Bianca v3 last week but since I bought it I had a lot of problems. First of all the machine came with a broken wooden foot. I contacted the seller and they sent a new one not a big problem. But afterwards when I was trying to make a shot I saw that the flow paddle is not working. I again contacted the seller and while waiting for response I lowered the pump pressure to 9 bars by turning the OPV and started making standard shots. The shots were all over the place and I suspected that the water was flowing too fast from the group head so I tested the flow without the portafilter. In 20 seconds 463mls of water came from the machine! The espresso I make is quite bad right now and I can’t use the machine. My question is if I get a new flow rate control from the seller and completely change it will it solve both problems or are they not connected and I should just return this machine? You can see the non working flow control in the video.