Enchanting Requirements not met - even though they are?

[Kvohr]

I have been trying to enchant items which sometimes works just as I expect it to. Then, there are things like shown below in the screenshot. My Character is level 4, which should meet the requirement given below and I have all the ingredients including the copper costs. 

 

What am I missing here? I am honestly baffled and the on screen hint in the UI is rather useless in this regard. 

[Huli]

Hi,

 

I think it may something to do with the numbers in the brackets. As you have quality enchantment - fine already there you can not enchant the quality any more. Some other items have more possible enchantments on one type.

[Lychnidos]

It's because you can have 1 Quality enchantment (it says Quality 1/1), and that bow already has the Fine enchantment. I think you can replace it with a higher quality one but I'm not sure.

[Kurgen]

As Lychnidos says, and you're trying to enchant an already "fine" item with one of the core constituent parts of the "fine" enchantment; "accuracy".

[Voqar]

Thanks, this threw me too since the "you can't" messages are usually more clear and I didn't even consider the limit of per type (which makes sense so you can't go too nuts on enchanting)