Idea Cellular — not receiving sms after converted to 4g

Address:

Nalgonda, Andhra Pradesh, 508248

I converted my no from 3G to 4G. From that time onwards I'm not able to receive sms from any network. My device supports 4G. My another Sim which is 4G works perfectly. Please help me to solve my problem as early as possible. It's linked with my online transactions. So resolve this problem as early as possible.
Thank you