Why my UK data all used up while roaming

[viviminmin]

Hi my UK data seems all gone while I am roaming abroad. I switched off sim1 which is UK sim ,and using sim2 which is china sim ,why is it still losing my uk data, will I get a big bill from EE ?

[Chris_B · Accepted solution]

@viviminmin  you cannot use your UK allowance, whilst in China, you have to purchase a roaming data add to have data there.