MDB 4.3. Cashless device. I am trying to switch my device to 32 bit mode in order to use the vend request command with a 4 bit price.

To do this I use the Expansion Enable Options command and enable 32-bit mode there by manually forming bytes from bits.
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And after that I try to use a 32 bit vend request command with a price of 4 bytes, but for some reason the device uses a 16 bit vend request command.