Myself, my mother and my grandmother have been invited to visit the United Kingdom by my brother who lives there.
I am unemployed because I take care of my mother and grandmother, my grandmother supports me. I have a bank statement that shows that she gives me money for a long time but it doesn't show that is from her account, so I don't want to show my bank statement.
Is a letter signed by her stating that she supports me enough to support a visa application successfully?