You were accidentally given two quotes, one with heavy metal testing and after order change or successive emails, not sure, one without the heavy metals, and the latter one was covered, so we didn't have the heavy metals test on the invoice, so we didn't conduct it. The misunderstanding was only determined after you inquired about the heavy metals test later on, after we, unfortunately, disposed of the samples.
Just to add a bit more detail so that we look a little bit less incompetent, hope that's okay.
Cheers my friend and let me apologize about the misunderstanding again.