scam involving the sale of beer and soft drinks

I contacted Backus to buy beer cases wholesale. They asked for my details and told me I had to pay 30% of the total upfront. They confirmed that the next day at 11 am they would deliver my order. They never arrived and then messaged me saying I had to pay the full amount for them to deliver my order, and that the truck driver would contact me. After that, they blocked me. This is how these scammers are operating.