Email limits for free account limited to 20 instead of 50?

Email limits for free account limited to 20 instead of 50?

I have just set up a free account for Zoho CRM and am attempting to send out some sales lead emails. I should be able to send 50 emails per day according to the documentation found here:
https://help.zoho.com/portal/kb/articles/email-limits

Two days in a row now I have tried sending emails and it is limiting me to 20. So is 20 actually the limit?