Vodafone India — threatening through sms

Address:

Rajkot, Gujarat, 360007

"you have used internet without a pack in your last bill cycle. This may lead to very high bills. You must upgrade your plan to get adequate internet & surf worry-free! Based on your consumption, we recommend the all new red 699 plan - 2017 edition & get 8gb data along with unlimited local/std calls+free calls on roaming + 100 free sms. All this at just rs699/month. Switch now & get 60gb extra free data if on 4g handset. To activate sms act red699 to 199 or click vodafone.in/i4. Switch"

This is the sms rcvd from no. 611123. I am using vodafone postpaid connection with internet pack and other. But they are misguiding so that people switch to there expensive package. This is also creating mental stress for me. Apart from that there's calls are drooping on regular basis.