The credit limit per minute is defined in the footer of our price page. The violation of that limit is not communicated by e-mail. If this limit is exceeded, you will receive a Bad Request error starting with "Minutes API limit severely violated" (http code 429) and you will have to postpone your requests until the new minute begins. You can also purchase a larger package with a higher credit limit per minute.
Please note that this limit will only be enforced if it has already been exceeded. For example, the limit for the premium plan is 1000 credits per minute, and if you have already used 900 credits per minute and you send us another request that costs 1000 credits, we will not block that request. If you have already used 1100 credits in that minute, further requests will be blocked for a few seconds until the new minute begins.