https://www.jetbull.com/registration/?om=get_5eur_free

And T/C:

freebet bonus - a free ticket to bet on!

JETBULL.com has prepared an interesting innovation for you, featuring a free bet. This special bonus, will be granted in certain circumstances at the discretion of JETBULL.com. It's possible that you may receive the free bet bonus as a birthday gift, as a loyalty award or as compensation for any inconvenience caused by an error on the side of JETBULL.com.

Rules and conditions:

1. This free bet bonus can be used only once, in the total amount. It can't be used for a system bet.
2. Only the net winnings, e.g. the difference between the total winning and the bonus amount, will be credited to the account.
3. If the bet, on which the Freebet bonus was applied, would have been cancelled exceptionally, this bet will be evaluated with odds of 1 and the free bet bonus will not be credited back to the account.
4. The offer applies only to one registration within the frame of a single household, 1 IP Address and 1 person (1 No. of a bank or Neteller / Moneybookers account, 1 credit card No.).
5. Jetbull UK Limited reserves the right to cancel the right or change this bonus offer or change the conditions for its use without an earlier notice.
6. Apart from the above-mentioned conditions, this offer is a subject of the General Conditions.
7. This offer is not available to customers residing in Romania.