The publisher, Insubordinate Books, uses your email to send you sporadic newsletters. Each newsletter has its own Unsubscribe opt out which is simple. However, if you have any problem.
Newsletters are sent out by Mailchimp or MailerLite. The contact form/signup sheet is used to add you to the list of subscribers and to send you the gifts or links and passwords to access the gifts.
When you go to Instafreebie or author cross promotion giveaways, you have the option to opt in for my newsletter. In doing so, you are not opting in to other authors' newsletters. However, you may be opting in to messages from the host, like Instafreebie, as they clearly state on their form. They give you the option to unsubscribe.
I don't sell your data or trade it. You are only signing on to hear from me and only me.
In my newsletters I will recommend group giveaways you can go to if you wish and you'll have the chance to sign up to other authors' newsletters if you want to.
Rosemary Tantra Bensko, publisher with Insubordinate Books at 3322 King Street apt. B Berkeley, CA 94703