I recieved my cheque a week and a half ago for a total of...

I recieved my cheque a week and a half ago for a total of $23.
Now the actual total of my dividend is $130.

How exactly did they work this out?
I would understand if they subtracted 46.5% from the total due to not providing my TFN, some of which I could claim back at tax time, but $107 seems a bit much and I have no idea how they go this sum.
There was nothing supporting it in the letter I was sent along with it.

Anyone have any ideas?

I'll be giving them a call when I get a chance, but thought I would throw this out there in case someone here has a quick answer.