Airtel — sims stop working and need to be replaced most of the time for a charge-network problems most of the time

Address:	New Delhi, Delhi
Website:	www.airtel.in

We recently potted out from Vodafone for excessive billing and AIRTEL turned out to be better billing wise but network problems are too high-sometimes our phones receiving SMS, sometimes no calls can be made or received, sometimes data doesn’t work at all and sometimes even though international roaming is activated it doesn’t work on a foreign land.
When complained (which is very often)AIRTEL executives ask us to do troubleshooting steps everytime by taking out the Simcard and again reinserting it-the simcard is new hardly 5 months old but it doesn’t work -by continuously taking out and reinserting the SIM card the phone gets damaged and think of the cost of an I phone and it’s repairs -it is really too heavy a burden.
In my family 2 members have taken additional sims this incurring additional bills but since without communication business cannot be done it became extremely essential.
Everytime a simcard is replaced you need to visit the store and pay Rs.25 for the simcard exchange-it seems these network providers are developing inferior quality sim cards to profit from their exchange.
Kindly get the services improved