My request from this forum is to give me more hints on other things I must lecture them on concerning 😟 Bitcoin and how to receive payment from customers.
As an extra tip OP to ensure continuity of this knowledge also since your current staff may not be constant, you can consider properly conveying the knowledge about bitcoin in a form that can just be presented to a new employee if it gets to that, to bring them up to speed. You could compile a good material whether offline (hardcopy) or online (to share the link), so it eliminates the stress involved with teaching new intakes about bitcoin.