The form “Msj primite” is incorrect.
MSJ is an abbreviation, and abbreviations must be written using capital letters. Therefore, the correct form is “MSJ primite.”
Another correct option is “Mesaje primite,” which uses the full word instead of the abbreviation.
In conclusion, the correct forms are “MSJ primite” or “Mesaje primite,” while “Msj primite” should not be used.