Terrible service if there is a problem. Iherb are fine if no problem. I am having my second problem in 2 weeks, they never resolved the first one,( somehow that got resolved with someone not from iherb as an aside). Now, I am going through the same nightmare, back and forth day by day with their advisors wasting my time as they DO NOTHING, and do not pass you to technical and attempt to resolve the problem. Iherb always used to get lots of bad reviews for customer service, I now strongly suspect they have bought in some false "good reviews" that unfortunately is becoming common practise.