Using a VPN might get your account frozen (it happened to me a few days ago) and you'll have to send the support an email (from the email address you registered from) + your IP address to get it back.
Few days ago i received an email says that igot $10 bonus in my account , clicked the link attached there and got nothing.
I used to get similar email in the past and it does give me bonus like $5 in the balance.
Is there something wrong? Like sending wrong email or so?
You sure it was not expired? What was the bonus for? I haven't been using the site for that long, but the only time I experienced a similar thing was with the daily reloads and that was because I had two accounts (The link worked in one account only, even though the bonus was sent to both emails).