German phrase
Kann ich ~ sperren lassen?
Meaning
Can I have ___ blocked?
When to use it
A polite request to stop use. It is practical and common with banks or card providers.
Example dialogue
Kann ich meine Kreditkarte sperren lassen?
Can I have my credit card blocked?
Ja, selbstverständlich. Wir sperren die Karte und senden Ihnen die Bestätigung per E-Mail.
Yes, of course. We will block the card and send you confirmation by email.