Lieutenant General To An Xo clearly explains the difference in bribe amounts in the Viet A case.

From March 15, Vietnam's tourism industry will reopen to welcome international visitors after nearly 2 years of closure to prevent the Covid-19 epidemic. At this point, tourism units in Ho Chi Minh City such as travel agencies, hotels, tourist attractions, etc. are almost ready, preparing the necessary conditions to welcome and serve international visitors back.

Source: https://www.sggp.org.vn/trung-tuong-to-an-xo-ly-giai-ro-ve-so-tien-chi-hoi-lo-bi-chenh-lech-trong-vu-viet-a-post704962.html