At Huawei see how much data volume is available per month?
You can find out how much data volume is available from the provider, not from your cell phone.
For example, using an app from the provider or on the homepage.
So I have a Huawei. I check my data consumption in the Vodafone app, but does that help you now?
This is in the app of your provider and not in the cell phone.
Under "Settings → Wireless & networks → Data usage" you can set how much data volume you have available. Then you can see how much data is left.
How much data volume you have in total, you have to check with your mobile operator.