£12.99, which is around $17 USD, which is what the person you're replying to stated, though American defaultism kicked in and they didn't specify which dollar, but still.
So... yes it is?
They want 23.99€ for a family account for me. It's hard to say if it's fair or reasonable but it's too rich for me.
$17 is about £12.69 at the moment so there does not seem to be any dishonesty in the claim.