letter
AndrewDear partner!
I am writing to express my worry. You wrote me that you paid by owertime. But so far I didn't get money.
I called to your worker but he didn't not only wants to help me he was impolite. He told me that I should not worry him with my questions. He refused to provide me information about you. Furthermore he fast interrupted my call and I couldn't ask him about some interesting for me things. It took matters worse because I couldn't get actual for me information and I don't know how to get my money. In additional i want to you provide me work channel for communication with you.
I hope you will solve our problems and we can build effective communication. I expect you pay and I believe that we won't have this kind of problems in the future.
Best regards