<human>: Can you give me a shortened version of the text?

A few days ago I decided to pay off a debt of mine so I called up the collection agency and talked to someone about paying it off. I was given until friday to pay half of what I owe.

I'm extremely confused about which payment method to use to pay off my debt of $972(in two installments). I was going to with MoneyGram to send off the money to the collection agency since my first payment is due by Friday. I have never used MG so I have no idea how to do this. I was given a act# and a receiving code by the person who was handling my account but I'm worried that I'm going to need more than that information alone to get the money sent. 

Then I thought it would be safer and better to send a money order via CM. So I called the office to get the address and ask what information I'll need to include to ensure that my money gets to where it needs to go. The guy I spoke with only gave me the address and just hung up. I never really got my answer and I've called the offices for the past three days and I really don't want to call again unless I have to. So before I work up enough nerve to call again I was hoping someone here would have an answer for me.
<bot>: when paying debt collector with money order what information(other than the address) am I supposed to include to ensure my money gets to the right place?