My chatgpt giving me wrong answers

I am giving the json file to my chatgpt as a knowledge in following format
{
“month”: “October”,
“opening_balance”: -3600.0,
“closing_balance”: -37760.0,
“income”: [{
“Name”: “LJ”,
“House_No”: “3”,
“Fund”: 1200.0
},
{
“Name”: “Sami”,
“House_No”: “4”,
“Fund”: 1100.0
} ],
“expenses”: [{
“Name”: “Severage”,
“Amount”: 42000.0
}, {
“Name”: “Security”,
“Amount”: 12000.0
}]
}
right now I gave only 9 month of data and after that when I ask to give answer “what are total expenses for the month of October” it show me expenses from the other month. any help?

I am changing my data format to the text files. So changing format helpful.