Too much data

I made a beam mp server and it caused me to get charged 100 dollars because there is “too much data being used” is it beam mps fault?

The BeamMP Server is a game server. I dont know exact numbers, but the more players you allow on your server and the more cars they are allowed the more bandwith is required exponential. Oh and if you have mods on the server… then those are also downloaded by the client. So yeah, could have happend that by running a server that it eated through your volume