Do not buy anything from this firm if it could possibly go wrong. If you needs a refund, you'll have to provide your bank details INSECURELY. I think this email from them will sum up their disregard for customer security:
Thank you for your e-mail.
We understand that you may be a bit apprehensive about sending sensitive information, so it is OK for you to censor things like account numbers, license numbers, balances, etc from the document.
The security team is a totally different department to customer care, whose major concern is to only protect customers from any fraudulent transactions.
In order to process your reimbursement we will need your bank details. Please send us via e-mail the following details:
As soon as we have these details we will be able to credit you. Thank you for your understanding.