Offer white labelling of the backend dashboard.
I know you offer front end white labelling. Back end white labelling would be ideal. Then agents can feel comfortable that they are dealing with the correct business and not a third party.
It keeps a business's marketing inline and fluid.
Would gladly pay to be able to have a vanity URL or be able to customize more of the backend to my business. Removing the labeling is great on the front end, but i have a number of clients who I would love to be able to provide a chat service to and brand it as my own.