Yes, you can use vouchers or Shopee Coins for purchases to be paid by credit card instalments.
⚠️Note
However, if your Total Payment is lower than $200 after applying the vouchers and/or Shopee Coins, you will not be able to pay by credit card instalments.
On your Payment Method page, the Credit Card Instalment option will not be available once your Total Payment amount is lower than $200.