Airtel — problem faced during plan change ie postpaid to prepaid

Address:	Jalgaon, Maharashtra, 425201
Website:	airtel.in

I submitted docs and followed process told by airtel to change my two postpaid no [protected] and [protected] to prepaid on 29th aug 2017 but no action taken since then. Each time customer care gave different excuses for this without intimating me. This is lack of service to a customer.in such a case a telecommunication co. Can reject my request again and again without giving feedback or sufficient reason. Kindly give all companies a guideline in this regard to save a customer from mental harassment.