I know what you're going through, I ordered an adult tricycle back in April 2021 and the bike shop had an issue with the factory and the delivery date pushed ahead another month. The last call I made was asking what ship it was on and was told the shipment wasn't even in a container yet. I suggested a similar model from another manufacturer and in January 2022 I got a similar one from a company out of Florida that makes them. Sometimes you have to rattle the cage and everything will turn out okay. My problem is the builder they're in no hurry and neither am I (we're one and the same).
You'll get your trike and someone's @$$ needs to be chewed out for the screw up .