Fuel pump control module location on 2016 Fiesta ST

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2 dealerships have used my VIN to pull up and show me the diagram showing the FPCM located on the top end of the filler neck tube. I have told them both that it is not located there on my car.I have visual confirmation. I have pulled the rubber boot where the filler neck terminates out of the firewall. There are no wires. When I questioned the dealerships one says it is actually inside the filler neck (which is silly)and the other says that it is “somewhere around there”? I have removed a lot of interior panels, carpet, backseat and even the rear wheel and splash guard. I have another diagram online that shows the module is located under the driver seat? There is room for it in the raised cavity and a wire running from the bottom driver seat cushion to that cavity under the carpet. Please someone help!! I do not want to take the carpet and seat out if it is not there. Online videos of other ST’s show it in various locations which I have checked. Thanks!