First of all, I must commend you for this beautiful initiative by accepting BTC as a means of payment in your furniture construction company. However, I will still advise you again despite knowing that you are much aware of the dangers of mishandling private keys. Keep your phrases very safe because any wrong move on that wallet will collapse your business. I will suggest you look for another wallet alternative. Trust Wallet in my opinion is some kind of weak when it comes to security. I lost some of my coins in trust Wallet some months back without nobody having access to my account keys. I was just speechless and had to get another wallet knowing that the previous one is compromised already and I sent the rest of my coins out.