I went back to findmypast and copied the following record.

Armed forces and conflict 2 results - the first result was the - British Army Service Records 1760-1915

this is the second result.

Boer War 1899-1902 - Soldier details

Name: QUIGGIN, JR
Rank: Trooper
Soldier number: 500
Unit: Bethunes Mounted Infantry
Notes:
Age:
Literary references: The National Archives WO127. Nominal rolls colonial units.