Certain factors that may delay or hinder your visa application are:

• Unmentioned study gaps: study gaps are not bad in themselves, but all such gaps must be mentioned in the application
• Out-of-date documents attached
• Failure to translate documents into English or Welsh
• Gaps in travel history (for example, the visa office may look to see if the applicant has previously applied for a visa in the UK or another country)

Such discrepancies may delay your application or even lead to its rejection!