Question for Nu Life International (Myanmar) Co.,Ltd

Hi ! Sir : I am Lenny Wong from Hong Kong . I bring my member card and one Myanmar Citizen member card to Yangon brand office buy the Alfalfa tablet . The sale girl said I can't use my HK member card and also local citizen member card expiry . I am long staying in Yangon and never go back Hong Kong within half year so I requested to buy two bottle . She don't sale to me , only sold one bottle.
I don't know why. One experience in Yangon Nu Life office . the sale girl said no stock but one of the guest said can sale it to me. What happen ? Your Company is international Co.
My Hong Kong member card no. is HK********
Please advise.

Thankyou !

Lenny Wong