Agency Required: Looking for help responding to facebook leads

Hi,

I am looking to outsource our social media facebook messaging as we are getting about 20-40 messages a day and it is too much for our in house team to handle, all messages must be responded to within 24 hours. I am looking for an agency who can consistently handle this volume and make sure responses are consistent. We can provide answers to most common inquiries. Experience is a must and looking for decent sized agency who is familiar with this type of daily work.

Thanks,

Sam