Canara Bank — sms from bank-although action initiated

Dear sir,
I hold a/c with the said bank - a/c[protected]. I have already linked aadhar card to my account see 1) as informed by bank officer2) i was getting lpg subsidy. This is not available unless aadhar card unlinked.
I gave application the bank to link aadhar card which is duly acknowledged on 17.09.2017and that time officer informed that aadhar is linked. Inspite of this i get sms dt 06.01.17on mobile to go the nearest branch and link otherwise a/c will be inactive. I am 68 years sr citizen. Instead of helping, this is just threatenng and harrassment. I have net banking. I tried to link aadahar card through net banking. Flashed message by bank - you can link aadhar card through net banking only once. We are in digital area as announcec by hon p. M.. And here is canara bank who say you can use net banking only once. Kindly give me email id of hon fin minister at centre to enable refer the matter of service gove bank. Thanking you