How do I stop a mobile data network from appearing and using data

[AC Question]

Hi, I work on a UK ferry that has its own mobile Internet network that passengers can use (MCP). This network turns on automatically when leaving port and costs a astronomical amount of of money to use, sometimes I leave my mobile data on in error and get hit with charges. My question... Is there a app or something in settings that can stop or restrict a certain mobile network so your phone will never use it?

 

[B. Diddy]

Welcome to Android Central! Are you talking about a wi-fi network? How about just forgetting the network from the phone? Or do you still have to use it from time to time?

 

[B. Diddy]

After discussing this with @belodion, who showed me this link, I realize now that this is a cellular network, which the phone is connecting to while roaming. You could disable roaming, in Settings>Cellular Networks>Data Roaming​.