In the USA the 200 GB plan is available - iCloud+ plans and pricing - Apple Support. However if your 2TB plan renewed and you couldn't pay for it then making changes to the subscription may be blocked by pending charges. How apps, content, and subscriptions from Apple are billed - Apple Support says:
“If none of your payment methods can be charged, your account shows a negative balance. You can't buy, download, or update more apps or items until you update your payment method. ”
You will have to pay for any outstanding charges and then try changing your subscription to one of those offered where you reside. Click on the link to learn how to switch to a different subscription plan --> Switch to a different subscription plan - Apple Support
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