USPS has been experiencing delays due to Covid-19, because of this there is no live arrival guarantee with USPS 2-3 day Priority Shipping as shipping is taking a longer at times. If live arrival guarantee is absolutely required please choose Express Delivery via Fed Ex. We apologize for this but our primary goal is to make sure the isopods arrive alive and well. Once delays stop, we will honor the Priority 2-3 day Live Arrival Guarantee. Thank you.