This is not an info that you can hide from users for very long. You will have people who start with a profile in both sides to see how it works. It’s done for

This is not an info that you can hide from users for very long. You will have people who start with a profile in both sides to see how it works. It’s done for fun on free platforms, it will done for research on any paying platform. If they don’t do it personally they’ll ask friends that will spill the beans. People will rant online on how much they paid for a single text sent. It’s just endless, the service will need to be transparent and forthcoming about the system or it becomes a PR nightmare.