I ordered the product directly from the Lume website, as before, without any problems and mistakenly entered my old address. I sent them more than twenty emails, the phone is always busy, but no results. How else can I contact them? I am grateful in advance.

Actually, to resolve any issues and situations that arise, let's take your case specifically, there is a lume customer service website. Specially trained people work there to solve any problems that arise from their clients in the shortest possible time. Contact them using the website and explain your problem. I'm sure they will help you. Do not mention it.