Airtel — Less validity

Respected sir
Airtel company aaye din apne recharge badha deti hai chalo ye to sabke liye hua hai per meri Complaint ye hai ki jo recharge sabke liye 155rs mein 28 din ki validity ka hota hai wo mere liye company 24 din ki validity ke saath deti hai ye partiality company kyu kr rahi pata nahi main airtel company ki purani customer hu do mahine se mujhe 4 din ka kam recharge diya ja raha hai total 8 din ho gaye sir jab jab hum ek bhi din recharge karne mein late ho jaaye to company humari service band kr deti hai per jab hamein 4 din Kam de rahi to hum kisse kahen company mein phone karke complaint karo to wo pehle to thik se baat nahi karte agar karte hai to kehte hai ki solve karenge per kuch nahi karte.
Sir please solve my problem as soon as possible
Thankyou
Name Pooja
Mobile number [protected]