This is the 6258th most frequent Turkish word.
ödemelerin
"Ödemelerin" means "your payments" or "the payments" (possessive form).
In this sentence, 'ödemelerin' is in the possessive/genitive form referring to 'the payments', showing ownership or reference to the payments that need action.
Ödemelerin zamanında yapılması gerekiyor.
The payments need to be made on time.
Here, 'ödemelerin' is used in a possessive/genitive form to indicate 'the payments', which are the subject of the delay.
Ödemelerin gecikmesi durumu kötüleşti.
The delay of the payments worsened the situation.
In this case, 'ödemelerin' indicates possession, referring to 'the payments' that are subject to increase according to the statement.