Hughes "retro fit" lifter not pumping up!

Noticed Hughes charged my credit card $68 for the new lifter they sent out to replace the one that would not pump up.
The invoice that came with the lifter clearly states "Balance due $0.00"
Upon looking at my credit card statement they turn around and charged me for it anyhow!

Maybe I'm missing something but why charge me for a lifter that I have already paid for?
What ...they don't believe the pictures I sent them or something?
Are they trying to pull a fast one?
Did they make a mistake and accidentally charge me?
The invoice hows that the lifter cost $54 the other charge was for shipping totaling $68
I have a roller cam so I need 8 lifters
54 X 8 = $432
The lifter kit .... all 8 lifters costs $399
???????
The way I look at it they need to pay me $68 for having to take the engine apart again.
I boxed up the faulty lifter and sent it back to them yesterday upon Hughes request.

Hughes will get a call today.