Where are you keeping your NEO and GAS? Exchange? Wallet? Which wallet if ever?
You need to give all the pertinent info so we can help you.
I am holding them in the android wallet ?
Check your wallet is fully synched with the NEO server. Close the app, internet and try again. But I recommend you to use desktop NEO wallets like NEON instead of Android app. You can still use them by exporting your private key from Android app to the NEON desktop wallet.
Maybe there is a problem with code from the NEO side because today i can see my complete balance in Android APP.
Thanks for the people who spend their valuable time for helping me.