Our contamination-free guarantee on all of our products is good for 30 days from the date of sale. No replacements will be offered after 30 days. In the event you determine your spore sample to be contaminated, simply contact us and we’ll make arrangements for a replacement. We pride ourselves on both the quality of our products and the customer service that comes along with them. So never hesitate to reach out if you have any issues with your order!!! Replacements are for contamination ONLY. We do not respond to comments, inquiries or complaints wherein cultivation or any related activity is mentioned.