Debbie, my suggestion is to focus less on the platform and more on the content of your message. I’m not saying this is the case, but if your audience sees your message on facebook and isn’t moved to the action you expect, marketing logic would suggest that you will see the same undesired results on telegram, LinkedIn, flyers, etc. I have an easy framework you could use to adjust your “message of value” or in marketing speak: Value Proposition,  and then you can track to see which version produces more of what you want.