Airtel — harassment calls from couple of months

Address:

Mumbai City, Maharashtra, 400074

Dear sir,

We have been receiving dirty call from a international spam from middle east (Kuwait) number on my sister's mobile number which +91 [protected]. I know that person he was a friend in kuwait accidentally i happened to share my sister's mobile number with him and now he has been take a undue advantage of that and is using slang language with me and my family he very well knows he is calling on a female's phone but still doesn't stops the problem is that the number cannot be changed so we want the calls should not come anymore now.

Kinky provide a solution for the same.

Regards,
Jaspal kaur