Надо сделать предложения более позитивным 1. Sorry ,I have no idea about it, as it’s not my responsibility. 2. I’m sorry to have kept you waiting. 3. We can only supply the goods after receipt of your payment. 4. I’m sorry I didn’t respond to you in time. I was too busy. 5. Your letter is not clear at all. I can’t understand it.
I'm not exactly sure about that, but I can point you in the right direction.Thank you for your patience, I appreciate it.As soon as we receive your payment, we will be able to supply the goods to you.I apologize for the delay in responding, I had a lot on my plate at the time.Could you please provide some more details in your letter so I can better understand your message?