Their billing department is untrustworthy. I have an invoice from April 11th that doesn’t show a payment that was made and they said they just sent out another invoice on April 16th, which I have not received as of April 30, that is $ 500 higher! How does that happen when I have not ordered anything? Every time I call I get somebody who has to research everything and get back to me later. This doesn’t make sense to me. I am now looking for a different distributor for my supplies.