Vodafone — SIM access error

My Vodafone SIM card is not operational since about two months. It says SIM access error and shows zero signals i.e, no calls, messages or data. I had also recharged it but it went useless.
I have also tried contacting Vi customer care and follow their instructions, but the issue still isn't resolved.
Please note that the issue is with our SIM only and not with the neighbors with same SIM in our area.
Kindly see through my issue and resolve it as soon as possible, it's been so problematic for us not being able to use the SIM.