Good day, @brainykwa.
It seems like there may be an issue with the contact details linked to your account, which could be causing the mandate rejection at the store.
To resolve this, I recommend reaching out to our customer support team as soon as possible.
They will be able to verify and update your contact information, ensuring that future mandates are processed smoothly.
You can contact us at 0860 123 000, options 3 and 3 or visit your nearest branch for assistance. We apologize for any inconvenience this may have caused and appreciate your patience as we work to resolve this issue.
We hope this information is helpful.
Regards, Standard Bank Team