National Highway Authority of India — Issue related to fastag monthly pass

We have monthly pass of barkheda toll plaza of IDFC bank. On last month end we were going to recharge our local pass but toll plaza refused to recharge as they told us that a new fastag of airtel had issued to us on 8 January but we denied and told them that we never applied for new fastag, but they refused and told us that we had to talk to airtel. So when we talk to airtel they told us that you have not issued new fastag so toll plaza will recharge your fastag so when we again go to toll plaza once again they refused us even after when we told them about our talk to airtel customer but they said we have to talk to NHAI to solve our problem. So please solve this issue ASAP. Car no. RJ14XC7212