How can I pay off early the installments on the Star Forte card?

You can request at any time the closure of the remaining installments to be paid, but it is important to know that you cannot request only the partial closure of certain installments related to a transaction (for example, if you made a payment in 6 installments and you still have 4 to pay, you cannot close only 2 or 3, but all 4 unpaid installments are closed).

After the installment payments are closed, this amount generates a payment obligation in the following month, but the amount can also be paid earlier, even before requesting early closure of the installments. 😉   

You can request closure either through BT Pay, or in a BT unit.