Belgium v Japan Free In-Play Bet Offerについて

いつもお世話になっております。

bet３６５ユーザーの方には届いているかと思うのですが、『Belgium v Japan Free In-Play Bet Offer』というメールについてです。

こちらに参加したいと思うのですがどのようにすればいいのでしょうか？

翻訳かけてもイマイチわからず・・・

ご教授お願い致します。

メール文
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Up to $50 Free In-Play Bet on Belgium v Japan
Get a Free In-Play Bet on Belgium v Japan at World Cup 2018 on Tuesday 3rd July. T&Cs apply.
How it works:
• Place a pre-match single bet on the Belgium v Japan game.
• You will receive a Free In-Play Bet to the value of your largest pre-match bet (max Free In-Play Bet value $50) to use as the stake on any Belgium v Japan In-Play market.
• Your Free In-Play Bet will only become available once the game starts.
• To use your Free In-Play Bet, simply add an In-Play selection to the bet slip once the game starts, and select the ‘Use Free Bet’ option next to that selection.
See Significant Offer Terms & Conditions Below*.
Returns exclude Free In-Play Bet stake. Only customers who receive the promotional email, web message or pop-up are eligible for this offer.

Enjoy the action!
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