Aircel — Barring my number

Address:

Chennai, Tamil Nadu

I am using this number last 2 years. I pay my bill on dates (some times delay 4 or 5 days). But the aircel bar my connection. I ring the customer care they were very lazy & they were misguided me. I try to reconnnection it will take 10 or 20 days. What can I do? This time its come another bill amount? How do i pay this? I didn't ring any numbers, but the bill amount is Rs.250/- or Rs.350/-.? How it possible?