Can ask for waiver dude. I have banks who waived my most recent month's interest charges. Your mileage may vary.
After i cleared my credit card for DBS , UOB , OCBC , HSBC,Standard chartered bank outstanding ..My DBS they waive 2 months interest , UOB 3 months, OCBC 1 month interest. Standard chartered 3 months interest. Citibank 1 month and HSBC 2 months.. total debts cleared 45k. Still left 36k. Really need to wait credit bureau to be updated before I apply for DCP. Stressss