whatsapp, BOT

I want to send messages to my customers via WhatsApp using a BOT. For example, I will import the numbers into the program via Excel for 10,000 customers. I will add the text and image, and then send t I want to send messages to my customers via WhatsApp using a BOT. For example, I will import the numbers into the program via Excel for 10,000 customers. I will add the text and image, and then send the message. If a customer sends a cancellation message, they will be removed from the list and the BOT will show me the cancelled customers in a separate list. I want to see statistics separately for those who read the message, those who did not read it, and those who blocked me on WhatsApp. I also need a feature to add or delete contacts in bulk. I would appreciate it if experienced BOT developers could provide me with a quote. Statistics are important to me, so I will need some level of detail