We recommend that before you try to process the payment again, you contact both your bank and your credit card company to make sure that payments to JobTestPrep.co.uk (may appear as "BLS*JOBTESTPREP") are permitted.
If the issue persists please send us a screenshot of any error message you may be getting and we will have our financial department look into it further.
Alternatively, you can make your purchase with a different credit card or via PayPal.