Why personal account? Is this real?

How does a courier company make one pay courier fee which was shipped to me at a personal account “Cathrine Mdluli” account.... I paid the amount now they want an arm and a leg from me

“Good Day Madam,

Sequel to Your response on your delivery, Be advised that this payments will be made to the South African Account to enable swift Clearance of your Package by our legal diploymant practitioners and also for documentation Purposes.

Be Informed that this payment covers the custom clearance of your package as stated in the custom code of conduct and does not indemnify other charges that may or may not arise during the clearing process.

See payment details below:

Officer's NAME: MISS CATHERINE MDLULI Officer's *** FIRST NATIONAL BANK BRANCH CODE: 250655.

Kindly send proof of payment for verification.

NOTE: IF YOU ARE DOING TRANSFER, PLEASE DO AN INSTANT TRANSFER.

Thank you for your usual Co-operation.“