Please put "only 3G" options in data connection on Lumia 535

[Bibhash Datta]

I am not able to use continuously is because there is no option for only 3G in Lumia mobile. So please update it and give an option in Highest Data Connection "only 3G", its a big issue because all of my friends using android phone and they are simply Surfing internet with 3G with same network connection and laughing towards windows phone. so Mr. Microsoft please update it as soon as possible.