On a more practical note, this triple reporting requirement (with only one of them, IIRC, being doable by email) means that prior to departure one needs to either rummage around for a fax machine with which to fax the form (to potentially any of the three), or have a laptop with a GSM/GPRS card which can send faxes.
Recently I got a Voda 3G card, and got rid of it once I found it didn't support plain old GSM fax.