There could be several reasons why your heatless curls are not working as desired. Here are a few possible explanations:

1. Hair type and texture: Different hair types and textures respond differently to heatless curling methods. If you have very straight or stubborn hair, it may be more challenging to achieve long-lasting curls without heat. In such cases, you may need to experiment with different techniques and products to find what works best for your hair.

2. Product selection: The products you use before and during the curling process can greatly impact the results. Make sure you are using products specifically designed to enhance and hold curls, such as curl-enhancing creams, mousses, or gels. These products help create definition and hold for your curls.

3. Hair preparation: Properly preparing your hair before attempting heatless curls is essential. Ensure your hair is clean, detangled, and slightly damp (not soaking wet) before starting the curling process. You can also apply a leave-in conditioner or curl-enhancing product to help with hold and definition.

4. Curling technique: The technique you use to create heatless curls can affect the outcome. There are various methods you can try, such as braiding, twisting, using flexi rods, or using foam rollers. Experiment with different techniques to find the one that works best for your hair type and desired curl pattern.

5. Time and patience: Heatless curls often require more time and patience compared to using heat styling tools. Make sure you allow enough time for your hair to dry completely before removing the curling method you chose. Rushing the process can result in the curls not setting properly.

6. Hair length: The length of your hair can also affect the success of heatless curls. If your hair is very short, it may be more challenging to achieve defined curls without heat. In such cases, you may need to explore alternative styling methods that work better for shorter hair lengths.

Remember that everyone's hair is unique, and it may take some trial and error to find the best heatless curling method that works for you. Don't be discouraged if it doesn't work perfectly the first time, and keep experimenting until you achieve the desired results.