cost of options, page-14

Not sure if you guys are finding the exercise of option conversion a bit confusing....The form does not have a tick box to say which payment option one will choose. Here are 2 possible confusions that may arise if using BPAY.....

1) If I use BPAY to pay for my option conversion and send in the completed form as per the instruction in the cover letter which says that "you must complete the form and forward it...." Does the registry assume that it has been BPAYed and not treat it as a case of missing attached cheque?

2) If I use BPAY and not sending in the form, how does the registry knows for what quantity I BPAYed for?

My question is if one uses BPAY option, does he/she has to send in the completed form?