Maybe she should open a bank account and start depositing some of the income there. She would need to show she has some savings (however meagre that might be) even if she applies for a super visa.No she has nothing at all. my mother-in-law supports herself with her store in a public market. It is a cash based business and she uses that money to live. She has no bank account and zero savings. She does not pay taxes which is another story. But should we just put that she is retired and that's why she has no income?
The only solution I can think:
She must defer her plans to visit until she is ready to stay for up to 2 years (or at least much longer than what a TRV would allow her to stay).
Currently, a TRV seems to be a non-starter. And, IMO, the efforts and costs for getting a super visa will be futile if she intends to visit for only 2-3 months initially.
Unfortunately, there's no guarantee a super visa will be approved given her present circumstances. But, she might have some chance if she holds off her application until she creates some ties and some finances