Web page with API integration for sending SMS messages - Whatsapp Facebook Messenger - ANGULAR 9, CSS

I need to send notifications with attachment through these channels: SMS, Whatsapp, Facebook Messenger (Email is already with another Freelancer) Everything you need to know is in the attached document: ANGULAR 9, CSS If you send a price and then increase it I will report it. Look carefully and pay a fair price, which is good for us 2. Commit on GitHub daily. Questionnaire for you to answer in the inbox message, so that I can evaluate your proposal fairly. 1-) Did you manage to understand breefing? 2-) If you don't understand what are your doubts? 3-) Is the deadline you passed correct? 4-) Is the value correct? 5-) Did you look at the APIs? 6-) We need to control the sending, receiving and reading / opening logs, all with timestamp, ok? 7-) The Recipient's Registry / Notified, will have API (1) for document search and API (2) for Postal Code can you understand? 8-) the body of the message will be used to send SMS, Whatsapp and Facebook the same message, ok? We must have the option of variable fields from the sender. 9-) In the document that will have a link, What is your strategy for uploading the files, creating the short link and creating the evidence of opening and reading? 10-) In the sending menu, we will assemble the complete message, with Remente, a recipient, message text and the short link (with opening password for evidence). 11-) The database you will use is Mongo? are you calm about it? 12-) Are you aware that at the end of the work, we will have integration in the admin panel and the user panel? We need to integrate into the existing one, because the credit collection policy already exists. Thank you for your understanding, I wish you Success! Integration will be in the User Panel and Admin Panel See the attached image for the user panel.