Is it a breach of customer confidentiality to confirm if someone has or hasn't bought a product from my company?
X was claiming to have bought from me when they hadn't. Z asked if X had bought from me and I said no.
Then later, X sent me an email enquiring about my product.
Now X are saying I have broken customer Confidentiality. Is this true? If someone isn't a customer, do you have a duty of Confidentiality to them?