Changing your payment details currently can't be done in a single step in Lucy. There is no screen where you can directly overwrite your account number or payment method. Which route you take depends on the status of your file.
Situation 1: Your payment has already failed
Has your old account been closed or was your direct debit rejected? Then Lucy shows a notification about an outstanding payment or a suspended file. This is the fastest route:
Go to Settings > Billing.
Click the payment button next to your payment details.
You'll land on the Mollie payment page. Enter your new account number or card details there.
After the payment, your new mandate is active immediately. All future payments will go through the new account.
You don't need to cancel or downgrade anything for this.
Situation 2: Your subscription is running normally
As long as your payments go through correctly, no payment button is visible and you can't change your details. Still want to switch accounts? Then follow these steps:
Downgrade to the free Lucy inbox. Go to Settings > Billing and select the free plan.
Your direct debit stops immediately. No new payment will be collected.
Your current subscription stays active until the end of your paid period. So you won't lose anything you've already paid for. For a monthly subscription, that runs until the first of the next month.
After that, your file is on the free Lucy inbox. At that point, choose your desired subscription again. You'll be guided through the Mollie payment page, where you enter your new account number.
Please note: the free Lucy inbox is not the same as the paid Inbox plan. If you downgrade to a paid plan, your old account number stays linked and nothing changes.
Is the free Lucy inbox not available to you?
Then cancel your plan instead of downgrading. Keep the following in mind:
When you cancel, your direct debit mandate is fully revoked.
Once your current period has ended, you can no longer choose a new plan yourself. The plan list is blocked.
In that case, contact support to reactivate your file. After that, you choose a new subscription and pay with your new account.
In short
Payment failed or file suspended: pay again via Settings > Billing and enter your new account there.
Subscription running normally, free Lucy inbox available: downgrade, wait until your period ends and then choose your plan again.
Subscription running normally, no free Lucy inbox: cancel your plan and contact support for reactivation.