one thing used in the US is baking soda.
You can put an opened box of it on the floor in the closet to deter odors. This can also be done in the refrigerator.
You can sprinkle some on a carpet and let it stand for an hour or two then vacuum it up, to remove smells.
Bender's problem might be lower quality.
Even if they are the same brand names, companies may send garments made of inferior fabric to asian countries. The shirts are made of inferior fabric.
There might be fabrics that do better than others in south asia.
There are three classes of fibers:
natural (silk, cotton, linen),
manmade (nylon, tencel),
and synthetic (polyester).
Cotton will absorb moisture and mould smell faster than others.