Does Shein leak card details ?

Hi,

2nd time this had happened. Ordered a parcel about a year ago off Shein (phone app) and a few days later several card transactions popped up on the banking app, which was from another country and definitely not me. Brushed this off as possible coincidence and maybe another website I used had leaked the details. Anyway, yesterday I placed another order through Sheins app and today again, several forgein transactions & card authorisation checks have popped up on my bank.

How are the bank details being intercepted ? And has anyone experienced the same ? When I google nothing really comes up on the matter

**extra info: 1st time i had only used the card a few times online as it was new. The 2nd time, i had fortunately used a virtual card this time round and only used it online twice, with one transaction being shein