I don't think you'll need to tell them; all transportation services like Mears pick up at the main building of each resort. As dansdad says, for the Poly, that would be the Great Ceremonial House.
Why not at the resort? Uber picked me up at the Poly ceremonial hall just fine.
(However, on the trip back, the Uber driver had never been to the Poly, and I don't think he could read street signs, so he ended up driving into the TTC by accident.)
Hi there I wasn't sure if the drivers were happy to pick folks up at the resorts directly around the MK. I know they seem happy to pick up at other resorts and they do get very close to Universal the taxi drivers don't like the Uber ones pulling up there.
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