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Eg.unnecessery calls

Dear sir/madam,

my prepadi mobile no. is 9891086975.

regurly I am getting more then 10 call from a day by your system

whenever I busy with other works I fed-up with these call. pls. provide me DND[Do not disturb] service.

I need not any message from your side per day minimum 20 message.

pls. register my complaints and stop the unnessary calls & messages.

thanks/regards.