The Degrees and Other Awards Statute of the University states that you must graduate within twelve months of completing your qualification.
For example, if you complete your qualification at the end of the second semester (i.e. in November), you will graduate in December of the same year, or in May or August of the following year.
If you don't apply to graduate within twelve months of completing your qualification, or have been granted permission to defer, you will automatically have your qualification awarded in absentia. Your certificate would then be held by the Graduation Office.
You may be able to defer your graduation. Permission to defer graduation is usually only granted to allow you to complete a second qualification so you can have both awarded at the same ceremony.