Automatically send scripted messages social network contacts, from 5x to 10x different user accounts

Hi everyone, I have at least two written scripts to send to lists of contacts through a particular social networking website, and each contact simply needs their name (which is read from the website list) written into the scripted message they are sent and the correct name of the user account entered at the bottom of the message. I previously hired individual freelancers to repeatedly copy-paste these scripted messages, each freelancer sending messages in parallel from a number of user accounts I have for the social network site. Now I'm aware that all the messages I need sent through all the separate user accounts (because of the volume and spamming rules), could be automated simultaneously by anyone with the skills and tools, or easily scripted, to use all of these accounts and allowing me to pay one freelancer for it all. The spamming rules on the website messaging system for each user account are circumvented simply by alternating between the two versions of the message scripts I give, when sending to each subsequent contact (so that no two consecutive contacts receive the same script version) AND by not sending more than one message every 3 minutes from the account. This non-spam messaging process must be followed for me to count (and pay) for those messages sent, because my user accounts are more important to me than, say, even 5 spammed messages sent causing the account to be blocked (or wrongly named messages for example). I'm looking for someone who can automate messaging from at least 5x of the user accounts I have, following these spamming rules for each account. During our chat, I will provide the social network website, a document to elaborate on the messaging requirements as well as the example scripts. Once I am happy your automation is working validly, I will provide more than the 5x user accounts to message with (allowing more messages every 3 minutes / more total messages per hour) which will enable your automation to achieve more correct messages in total and more earnings for you, however, I want to check the quality first before it is scaled for 5+ accounts. Per 100 messages copied/sent, I will pay £5, and at that ratio if a contact list with an odd number of contacts is completed (e.g. 357 contacts = £5 + £5 + £5 + £2.85). There are over 2,000 contacts currently to message for this weekend and next week and I am finding more for the following week. I have the following strict rules regarding the time of day for sending the messages, all in UK time: All messages sent that are sent on weekdays must be between 19:00-22:00 only; if sent on Saturdays then only between 10:00-18:00; and if sent on Sundays then only between 11:00-20:00. These are the hours when the majority of my target contacts are not in work and most likely to open the messages I have scripted. To be clear, I will only pay for messages sent within these times. I will pay a bonus of £0.50p extra per 100 messages sent within the Saturday hours (so £5.50 / 100 messages) and an extra £1 per 100 messages sent within the Sunday hours (so £6 / 100) messages. I look forward to your questions.