I assume your parents were usually very perceptive old fashioned style. I am 85 years old and was in a vulnerable state, after successful surgery. As a gift to myself I got a brand new tower. I thought I was pretty adept myself. Somehow I got locked in to Mumbai.
I still cannot understand how I allowed myself to be duped when I knew about India/Mumbai.They played mind games for about six hours and I almost broke down. They then put me on a regular network which still works ok. Sociopathic scum, could have bilked me for the 225 dollars Canadian and left me in ten minutes. (Excuse the rant, I feel better for telling this).
I’m sorry for what you went through. There is a special place in hell for people that run these scams on the elderly.