I had payed ICloud storage until last October.

If you disputed the charges with your issuer rather than contacting Apple about the charge your account was suspended. Merchants don’t like it when customers dispute charges without working with the merchant first; in addition to not getting the money they are owed, they must pay a substantial penalty.

Here is a one-stop link for billing questions→Subscriptions and Billing - Official Apple Support. You can review your purchase history, cancel a subscription and request refunds.

However, if your account was suspended you must contact iTunes & App Store support to resolve the disagreement. The instructions for doing this are here→If a message says 'Your account has been disabled in the App Store and iTunes' - Apple Support

Hello,

Start here:

View, change, or cancel your subscriptions

For a possible refund, see this:

Request a refund for apps or content that you bought from Apple

Good luck.

Until you get your account and payment method sorted out, you can’t buy more storage.

As explained, you disputed the charge so your payment method is no longer considered valid.

Lawrence,

Thanks for the update.

Bill