[Avodah] alexa sale?

[Rich, Joel]

Reuvain awakes in the middle of the night and, forgetting that it is Shabbat, blurts out, "I really want to sell my chametz." Then, realizing that it's Shabbat, he makes a mental note to take care of it after Shabbat. He then forgets about it until after Pesach has already started.
However, Alexa heard his pronouncement, made a complete list of his chameitz, found the website that he used the previous year to sell his chameitz and transmitted the fully filled out forms with the password. The sale was completed by the Rabbi running the website. Is Reuvain's chameitz usable by him after Pesach? Does it make a difference if Alexa waited 'till after Shabbat to transmit?
KVCT
Joel Rich

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