Newsletter Block This newsletter signup form needs a storage option. Edit the block and enter a storage location via the Storage tab. Join the Mi Boutique Community Be the first to discover new limited collections, styling ideas and thoughtful Mi Moments.As a little welcome treat, enjoy 15% off your first order when you spend £20. You will also receive early peeks at new pieces and occasional subscriber-only offers.. Email Address Sign Up Thank you for joining the Mi Boutique community. Use code MIMOMENT15 for 15% off your first order over £20.