Why am I asked to buy using margin when I have ample cash in my balance?

Will73 : https://live.moomoo.com/course/content-detail?course_id=1348&section_id=2108560004&type=1&source=course&open_type=video&open_type=video

Will73 : Might because of you don't have the currency to buy the stock.You should check with customer service.

Will73 : https://www.moomoo.com/hans/community/feed/106193669259270?data_ticket=9e7e1ae82993a4496bc4d5367e5c057b&_=1645754052

Dadacai : https://www.moomoo.com/community/feed/106193098113030?lang_code=2