In August 2024, I suddenly found an unrecognised transaction. After further checking, I found a total of 30 fraud transactions (£10.47 per 3 months) (total amount £314.10) debited from my bank account between 16/5/2017 to 16/8/2024 by firstly (StudocuCom Amsterdam Nl) then by (StudeerSnel.nl). Later, I enquired with this company but they failed to retrieve any subscription either under my name or my email. That means someone had used my bank card number to make such subscription in May 2017. However, they claimed that it was long time ago and only agreed to refund me the last transaction on 16/8/2024 (£10.47) only. It was strange that I have changed my bank card for 2 times due to expired date and 1 time for lost/stolen reported. They can still keep use my expired card to debit my account for 6 years (every 3 months). Even though I refused to accept their minor refund £10.47 only, they can also credit my account by using my expired card details. It was great risk that someone can debit and credit my bank account as they like anytime.Reply to company’s response: I have lodged formal complaint to your support. But they still used the excuse of subscription procedures to refuse my refund even though they failed to find any subscription under my name & email. They also refuse to provide the proper channel which ombudsman that I can pursue my complaint.