Corporation Bank — disappointed with call center service

Dear team,

This is very sad to inform that the toll free number call center guys are not behaving and working with their customers. I called the toll-free number (Issue related by debit card) and manigandan from banglore picked up my call and informed me that my card is cancelled from bank and i need to call the home branch number for more info and he provided me with 4 different numbers which perhaps are all invalid and i called him again and he tells this is all 4 number he has very rudely. I then escalated this matter to hi lead which most sadly behaved very rudely as why do you want home branch number and says no problem and disconnects the call. Please look into this matter.
I am very much disappointed with the service.