For Donate_Self, both registered phone numbers use the
same 4-digit PIN and the same wallet balance.
Example: if ₹50 is added, both persons can use that same ₹50 balance.
How it works:
Self: one phone number uses the wallet.
Donate_Self: two phone numbers are stored in the
same account row so both persons can use the website.
For Donate_Self, both phone numbers use the
same PIN and same wallet balance.