Regarding Partly payment cash and Bank

sale bill issue to mr a
dated 3.04.2023

amount 35000

Payment received detail

amount recived 18000 in bank neft dated 6.04.2023

amount received in cash 5dated 8.4.2024 amount 9000

amount received in cash dated 10.04.2024 amount 8000
total amount recived

my question is some payment received in cash some recived in bank

any problem or not thanks in advance