Since October/November time the CASS scheme brought into effect a new process whereby full switches follow a new procedure; they suppress the messages banks send to merchants advising of the change of your bank details. This is in an effort to minimise issues where merchants don’t act on bank advices.
The message suppression process means that the merchant isn’t aware of the switch until they send their next DD collection to you/your old bank; because they are unaware of your switch, the collection goes to your old bank and CASS redirect it to Starling/your new bank. After the redirection, they un-suppress the message and send it to the merchant, who then has the maximum amount of time before the next DD is due to update your details they hold.
The idea behind this new process is redirection is proven to work as expected, whereas relying on merchants to action bank advices is not, and often either doesn’t happen in time for your next DD, or doesn’t happen at all.
The DD’s will then change to live in the app
You are still covered under the CASS switch guarantee if the DD’s do not go out as planned.