How many links can I buy per day??

Hi all,
how many I can buy without being banned by Google!!??

Building more than 10 backlinks per day is very good and useful for website traffic. If a person who is just started learning SEO, couldn't build this count in one day as submitting 20 or 30 submissions only will give a maximum of 10 valid do follow backlinks.

It is better to stay away from the paid link!!

If Google doesn't like what you're doing it can suspend or terminate your account at any moment. In the TOS document, Google says that it can ban your account if you “misuse” or “interfere” with its services.