merged cells not working as expected

[bvbg1]

I followed this example (same code, same image/pdf):
https://aws.amazon.com/blogs/machine-learning/merge-cells-and-column-headers-in-amazon-textract-tables/

print (df) shows:

        Date              Description Details  Credits  Debits   Balance
0   2/4/2022  Life Insurance Payments  Credit              445   9500.45
1   2/4/2022      Property Management  Credit              300   9945.45
2   2/4/2022           Retail Store 4  Credit            65.75  10245.45
3   2/3/2022         Electricity Bill  Credit           245.45   10311.2
4   2/3/2022               Water Bill  Credit           312.85  10556.65
5   2/3/2022           Rental Deposit  Credit     3000           10869.5
6   2/2/2022           Retail Store 3  Credit              125    7869.5
7   2/2/2022    Retail Store 2 Refund   Debit      5.5            7994.5
8   2/2/2022           Retail Store 1  Credit             45.5      8000
9   2/1/2022        Shoe Store Refund  Credit       33            8045.5
10  2/1/2022    Snack Vending Machine   Debit                4    8012.5

Note the lack of "Amount".
Can anyone shed some light on this?