if the code is "1" that is the day tariff from 5:01AM to 9PM. The Code "0" is the night tariff from 9:01Pm to 5AM.

Code "0" is also used when the destination is (anywhere in) Doha going outside like Sealine, Ras Laffan or Al Khor. This is because there's no passenger going back to Doha, or whatever is applicable. If this is the case, the driver informs the passsenger before accepting the passenger. Call center agents do this top avoid miscommunication/arguments.

So, do check the meter when embarking a karwa taxi. If they don't turn on their meter, here's what you do:

1. Check their company ID(they always wear them);

2. Get their driver number and name.

3. Get the taxi number and

4. Remember the time/date when it happened and where you hailed the taxi from.

You could call the Call center number (4588888) and say you're filing a complaint. The person would either transfer you to the Operations Dept or they will take down note of your complaint and hand it over to the Operations Dept.

You need to give your contact number and name coz they will call you for verification of your complaint, if you wanna pursue your complaints or not. Most often than not, those who complaints forgets it...