Lol.
The 1119 is the subject code. The UK part is called the GCE OLevel.
English 1119 used to be optional as a part will be sent to the UK for assessment as the GCE O Level. However, since now it is compulsory, they would like to clarify the subject taken with the subject code.
So, the additional UK score is NOT your 1119 score. 1119 is the entire package, which would most likely be your English score.

Since only a section is sent to the UK for the O Level assessment, it is possible s/he got too focus on that section in order to score better, and let his guard down on other sections.
Therefore, he may have gotten good for the assessment but otherwise for the entire package.

I believe it'll be sent to trained local representatives marked to the standard of the O Level, or merely sent to the local Cambridge centres.
The fact that it'll be sent to any companies directly in the UK would be ultimately expensive, because of the high amount of candidates. Better start a research on this.