When you place your first order there is a checkbox on the checkout page. If you tick this you will receive a free t-shirt, free shaker bottle and scoop. None of these are sent with future orders and if you need another scoop you’ll have to request one. This is what is supposed to happen but they may have missed your scoop out.
If you want to be precise then you need to abandon the scoop anyway. Huel is not ground like caster sugar so every scoop does not weigh the same. I am on a calorie controlled diet so I weigh my Huel on scales into 2 containers which I then take to work, 1 for lunch and 1 for 5pm before training. Then in the evening I weigh out 2 more for the following day. I recommend you use a calorie calculator to figure out how many calories you need per day and then something like myfitnesspal to track what you eat.
Just keep the containers out of sunlight/daylight as Huel reacts to light.