Is there a Bandwidth Meter App that can monitor, alert / stop access to the Internet?

[normanp]

Bandwidth Meter App that can monitor, alert / stop access to the Internet

I'm looking for a Bandwidth Meter APP than can alert, and possible block access to the internet, once a certain amount of Data has been transferred on my phone. So, suppose if I wanted to stop at 950MB, I could set 950MB as the limit, and it would automatically alert me and stop data from being transferred.

I need something like this because I access the internet on my PC using my mobile data, and my mobile service provider does not send any alert once I reach a limit or exhaust my allotted data. Instead, I'm billed for all that I use above the allotted limit.

Any recommendations for something like this?

Thanks,