Online order

Very disappointed in Builders, I ordered 2 items , received confirmation 2 days later that it’s ready for collection, upon pick up the guy says it’s out of stock. How’s it out of stock if they took my money? How’s it out of stock if you guy’s sent a confirmation that it’s ready for pick up?? Very unprofessional! Money deducted but I don’t have the product, no communication from the team either !!