Guaranteed winnings on Spain Italy

First of all, I'm not trying to con you into giving me free money! Now that is out of the way:
If you want free money, follow this strategy for tonights Spain Italy game:

Bet 365: "Place a pre-match bet on Spain Italy, and we will give you a free In-Play bet to the same stake on the big match. To qualify, simply place a bet before kick off, then once the game starts place another bet on any in-play market. IF YOUR FIRST INPLAY BET LOSES, WE WILL REFUND THIS STAKE"
note: max £50 stake, have to put £100 in your account, if you are using a £50 stake


Using Bet365, place a bet now on a Spain/Italy win (double chance) @2/7
Then, as soon as the game kicks off, place the same value bet on a draw (@12/5)

(Using £50 as a marker) Potential outcomes:
£50 pre-match bet (Spain/Italy win): In play stake is returned (£50), pre match stake is returned (£50), plus pre-match betting odds (£14.29)....therefore profit £14.29

£50 in-play bet (Draw): Lose pre-match bet (-£50), in play stake is returned (£50), plus in-play winnings (£120).........therefore profit = £70


Courtesy of btbfootballtipster.com. Go here if you want more details/clarification
(In the unlikely event that something goes tiits up, blame them, not me! I'm just sharing the love)...oh and good luck!