Online payment refers to money that is exchanged electronically. Online payment usually is the transaction that results in transfer of monetary funds from the customer bank or credit card account to your bank account.
Live chat is a medium that allows the employees to interact with website visitors or with each other in real-time. It can be either text, voice, or video-based chat that team members can use to get in touch with each other to discuss or resolve any ongoing issues.
A Q&A is the closest thing to a conversation in the social media space – a host answers questions asked by followers. Questions are usually asked by texts and answered by the host via video.