Truecaller should be banned

I don't know if this was posted before but anyway

Today i went to local store to buy some stuff
The shopkeeper didn't have what i wanted so i told him call me when he get it. But when i gave him my phone number, he added it to his phone and told me "Okay [my name]". So i told him how did he know my name since i never told him about it then he told my about the …

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