Old Father : please help me ...
Mobile servicer: what's your problem uncle? Old Father : My mobile has damaged and that's why my son couldn't call me for last 1 month. Mobile servicer: After checking the mobile he doesn't get any problem of the mobile. Then he said the father " There's no problem in the mobile Maybe your son didn't call you for last 1 month ".
Then the father was crying and left the place.
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From @maaruf