I found a way to create unlimited PVA Gmail accounts - Is there limits?

So I just stumbled across a website that allows you to buy phone numbers for PVA, but found that they give a 7 dollar credit if you signup and verify the account. So I built a bot to keep creating accounts... So far I have been able to create several hundred gmails. Is there any kind of limits from GMAIL that I need to worry about? I mean obviously they do phone verification, but I just found this little loop whole around it.

Can you share the name of the website. ravi_sharma1912 Skype coz I am a newbie

Not looking to share the info, as they will eventially fix it if I share and too many people use... I am just looking for limits such as how many accounts per IP...

Not really a maximum number. However, I have heard that the more accounts you create, the more "hoops" Google will make you jump through. As an example, more capcha prompts or info verification challenges.