Airtel Payment Bank — Amazon send amount not credited bank account

My name is jitendra singh, airtel payment bank acont number is [protected], and i have return product on amazon and amazon send refund in my airtel bank 4 march 2021, refund of 1499/- and 4497/- issue 4 march and one amount 1499/- is credited my airtel bank but second amount 4497/- in not recive my bank, i call amazon and amazon say we send succesfully two amount 1499/- or 4497/- but if not credited your bank we give refrance number and call your bank and give refrance number your bank bank help for this, but i call bank but bank not help with refrance number, refrance number is[protected] amount 4497/- my airtel bank ac no is [protected], amazon send succesfully but 4497/- amount is not settel in my airtel bank acount number [protected].