Dear Keiko-san,
I am Piamlap, PPCC who is the account owner of Blackcat.
Apology on what happened from your side. Let me share on what happened on customer side and how we should do next.
What happened on customer side is:
1. They feel that to contact them like they are using illegally software, but they bought the correct license.
2. Since they have not known you, they have to ensure in term of security purpose
3. They have non-skill IT guy in term of SyteLine.
The next is:
1. What is your stage now?
2. In anything, they want you to contact us. For example: To install audit software, explain the audit process, etc.
Please advise.