I need 5,000 messages sent to Facebook business pages

Please only bid if you have experience. I need someone who can message 5,000 Facebook business pages. The messages can be sent to any type of business but I prefer they be "online" businesses. Either e-commerce or online marketing. I will send you the message that I want want sent to everyone and your job will be to copy and paste it in a message to these 5k businesses. I tried to do this myself but after I sent 100 messages Facebook told me I need to slow down. I need someone that has MANY facebook accounts to send the messages out without getting flagged, or someone that knows how to get around this. Please PM me any questions.