External USB camera Lenovo A616

[AC Question]

Hello,

I cannot get a usb camera to work with my Lenovo A616.

The camera manufacturer say the following; "Android phone must support OTG USB. Android phone must allow external camera."

I know my phone supports OTG USB but I have not been able to get information from Lenovo regarding the use of external camera.

Any suggestions or ideas where to get support?

I am located in UK and the A616 is not supported here now.

Thank you,