Meaning trap
get into
be admitted (institution)
To be accepted as a member or student of a school, university, or other selective organization.

Don't mix these meanings
Same phrase, different job.
To be accepted as a member or student of a school, university, or other selective organization.
'get into' also has the more basic meaning 'become interested in'; this is the advanced sense.
Hear it in context
Notice where the phrase sounds natural.
She worked hard all year to get into Oxford.
Many students feel under pressure to achieve high grades in order to get into prestigious universities.
Fix the pattern
One small grammar move makes it sound right.
Not: She got in Oxford.
Say: She got into Oxford.
For being accepted, use 'get into', not just 'get in'.
Which sounds natural?
Tap the one a native speaker would say.
'Get into' is how people talk about being accepted somewhere selective; 'granted admission to' is an offer letter.
Build natural chunks
Words that usually travel with it.
get into + institution
- into uni
- into Harvard
- into med school
- into the programme
Don't confuse it
Related
Other meanings and phrases to compare.
- get into (become interested in) — 'get into' also has the more basic meaning 'become interested in'; this is the advanced sense.