Vodafone India — outgoing calls barred

Address:

Bangalore, Karnataka, 560058

I am a vodafone customer from a very long time. I shifted to kerala a year back, since then i am not doing much calls from this sim, but have kept the sim to receive important calls. For one week the sim was switched off and i again put it back to use. But, now i get a message stating "calls are not allowed, contact customer care". I tried calling customer care to inform this, but the call doesnt go to customer care either. I need my number activated as this is the number i give out everywhere. I would request vodafone to take this in a serious manner as i need my number back at any circumstance.