Income Tax Department — pan does not exist error

Address:

Narendrapally Near Powerloom,PO chakdaha,Dist Nadia,741222, 741222

I am using my pan card aijpm7544c for last 15 years, all of a sudden i am getting subjected error while filing my income tax. Already sent request for correction so that i can file my income tax return but unfortunately no action has been taken from your end.
I got a call from income tax department from tel no [protected] and insisting me to change my pan card with a new one. Please try to understand my age is more than 75 yrs, at this age i ve to visit all government offices where i already submitted my pan card and update with new pan no. Suggestion given by you is absolutely unacceptable from my end, its my kind request please resolve the problem which has created at your end at the earliest, i would be grateful to you.
Please don't forget to acknoledge.