You can easily upgrade your Casa membership to a higher level any time.
If you have an existing Pay wallet or 3-key vault in your Casa app, those wallets will not be affected when you upgrade.
For example, if you have a Gold membership and have set up Pay and a 3-key vault and you upgrade your account to Platinum, you'll just have additional access to your new 5-key vault, which you'll set up with a totally new set of keys.
In the above example, you can continue to use any and all of your three wallet types indefinitely.
How do I sign up?
You can use the following links to upgrade. Simply click the link, sign into your Casa account, and pay for the upgrade.
Upgrade to Gold or learn more about Gold
Upgrade to Platinum or learn more about Platinum
Upgrade to Diamond or learn more about Diamond
Note that if you have recently paid for another membership, then you should be automatically prorated for any unused time on that membership. For example, if you paid $120 for Gold six months ago (half a year), then upgrade to Platinum, you will automatically get $60 (half the cost of the Gold membership) off your Platinum membership at checkout.