Clothes alteration in Ho Chi Minh

Hi all! I am intending to alter some of my existing clothes as I have lost quite a bit of weight recently. Any shops or areas in Ho Chi Minh to recommend?

In my area Nguyen Van cong rd,Go Vap,5 min away from airport, has Tan Son Nhat market,they have several alteration ladies with sewing machine sitting by the roadside. Signboard writes:"Chuyên sửa quan ao" which mean specialise in alter clothes. I alter my pants to be smaller it cost me ~15000vnd some time ago. I tried 3 stalls all satisfied:)