It sounds like a major communication breakdown to me. How did you define your needs? What did the written quote say he was going to do? There's a big difference between asking for a 30amp/240v circuit and a 30amp 240/120 volt.
A 240v circuit is 3 wires, Hot L1, Hot L2, and Ground. You can't get 120 volts on that circuit without a neutral.
A 240v/120v circuit is 4 wires. You can get 240v between the two hots. You can get 120v between one of the hots and a neutral. The ground is used for equipment grounding in both cases.
It's always best (for other people viewing this thread) to tell the electrician what NEMA receptacle you want where. If you specified a 14-30R, you'd get 4 wire.
It's getting a little more complex with different controllers needing different plug types. The Blichmann brew commander 240v unit needs to be supplied by separate 240v and 120v input lines. It needs an L6-30R which is hot, hot, ground and also a 5-15R for the 120v pump input. If you want to supply that with a single new circuit, you'd have a 4 wire run from the main panel and then break it out in your receptacle box. Personally, I'd just rewire the commander to have a 4-wire plug (NEMA 14-30P).