Dropping a maiden name

Currently waiting for a response from Uganda Registration Services Bureau (URSB), they should respond promptly and normally no later than (details).

Dear Uganda Registration Services Bureau (URSB),

Am Tuhame shafike on my academic documents and birth certificate but has Tuhame shafike Musoke on my national id.
So I would like to know which procedure can I use to remove the third name legally to match my academic documents and also the costs involved.

Yours faithfully,
Tuhame shafike