un-subscription process

Location/place: Indore

Name of company/service: airtel/broadband

i have applied for my broadband un-subscription to airtel 10 days back,
(application ref no -17273656)

now i am getting daily calls questioning why i am going away from this connection.
this is happening on daily basis.

i am an employee also,it is becoming more hectic now to attend these calls at my work place on daily basis.