Frustration and desperation is not going to get you anywhere-- blaming the animal isn't either. This forum is a fantastic resource with many people who can help you, and this question has been answered many times before. Here are a few good places to start:
Breeding Veiled Chameleons
Keeping Female Veiled Chameleons
The breeding page of
melleridiscovery.com offers concise and complete information regarding oviposition, complete with photographs and methods.
Additionally, a simple search on this forum will yield more information and anecdotes on problematic laying, more quickly, than any of us could type here in a day, and if you have additional, specific questions, they will be promptly answered.
Research before Acquisition.
Fabián