Apple account regional issue

My Apple account was originally registered under the Malaysia region since I was residing in Malaysia for a significant amount of time. After I moved back to my home country, Bangladesh, I want to change the region, but apple is not allowing me. My Malaysian bank account has been closed, so I do not have any Malaysian payment method available at my disposal. Apple is not allowing me add a new payment method from a different region either. Do you have any suggestions for me? Because without a valid payment method, I can't purchase iCloud storage or even download/update my current apps.