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I must send message to company. Please verification my content.

Dear Mr. ...

When can I  expect an answer to my questions? I hope that your offer of cooperation is on  Your behalf is a serious proposition.

Your sincerley 

Please verification my content.

I must send message to company. Please verification my content.

Dear Mr. ...

When can I expect an answer to my questions? I hope that the offer of cooperation on Your side (www) is a serious proposition.

Your sincerely,