Collins automatically adds 'Hi <customer name>' to all the General emails you send out through Collins, as illustrated below:
You can, however, disable this by going to:
Venues > Select the venue
Emails and Texts tab on the left-hand side
Tick the box where it says 'Don't automatically add 'Hi [Customer Name]' to emails that you write in Collins'. This allows you to be more formal or informal with your clients, as you so wish.
Make sure to SAVE the page