You can change your plan through your Tide app.
Just tap the icon in the top right-hand corner of your homescreen, then tap 'Go to settings' > 'Tide plan'.
Here you'll be able to choose your new Tide plan.
If your new plan offers you more Expense Cards, we'll send these to your registered address within 5 days.
If your new plan offers fewer Expense Cards, you can still use these cards but you'll be charged £5 per month for each card not included in your plan. You'll be charged this on the 4th of each month.