Can My Clients Contact You for Support?
No. Support is tied to the licence holder — that is you, not your clients. Each licence covers one purchaser and the support that comes with it is for that person only.
If a client wants direct support access, they are welcome to purchase their own licence.
A better option for agencies
If you are managing AB Split Test on behalf of clients, the Agency Hub is built for that workflow. You connect all your client sites to a single dashboard, manage tests centrally, and your clients never need to interact with the plugin directly.
The white label option lets you present the interface under your own branding, and public shareable reports give you a clean way to share test results with clients without giving them a login.
Also worth reading: Agency Hub · White labelling AB Split Test · Agencies page