This is the 1011th most frequent Swedish word.
ditt
"Your" (possessive form).
'Ditt' is used to indicate possession for the neuter gender noun 'lån', expressing ownership.
Ta hand om ditt lån.
Take care of your loan.
The word 'ditt' is the possessive pronoun used for 'your' and matches the neuter gender noun 'hus'.
Här är ditt hus.
Here is your house.
In this context, 'ditt' is used to describe possession of the noun 'meddelande', which is neuter gender.