of course its normal - normal that he cannot be bothered to do it right - you need to ring but i cannot see much happening before tuesday so you have a couple of choices
leave it as it is and have a chat with the installer who might alter things although it not his job really
if its not connected to anything on the house wall and there is enough length move it yourself - it should be in green ducting - hopefully the pull team did that but they sound to have done as little as possible
if the installer will not do anything and you dont want to get involved - which is understandable then it could be sorted after the install if you push them
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Tony