Facebook Cold DMs / CPA Offers

It really doesn't work, find a new solution.

Of course it's not as effective, it can build good customer trust but imagine, when you run ads with a large amount of data in a day, can you send direct messages? You still need a little help from the bot, it doesn't mean you have to use it all.

You can maintain a large number of facebook accounts and when you do so Facebook has spam filters and you will also be restricted then so I would advise you not to do this