Everyone
Complaints
Last updated 26 October 2026
How to raise a complaint with Kalplex and what happens next.
If you use Kalplex for your business
Email complaints@kalplex.com with your account email, what went wrong, when it happened and what you would like us to do.
- We will acknowledge your complaint within 2 business days.
- We aim to send a full response within 15 business days. If we need longer, we will tell you why and when to expect it.
- If you are unhappy with our response, reply asking for it to be reviewed by a senior member of our team.
Complaints about payment processing, payouts or your GoCardless account are handled by GoCardless — see its dispute resolution page.
If you were debited by a business that uses Kalplex
Contact the business first: it is responsible for your payments and can resolve most issues directly.
Your bank can refund any Direct Debit payment within 8 weeks, or within 13 months if it was not authorised. See Information for payers.
If the business does not respond or you believe it is misusing Direct Debit, tell us at complaints@kalplex.com. We cannot reverse payments ourselves, but we will investigate under our Acceptable Use Policy and work with GoCardless where needed.
Data protection complaints
Contact privacy@kalplex.com. You can also complain to your data protection authority.