The common ones used are coupons, sweepstakes, games, contests, price-offs, demonstrations, premiums, samples, and money refund offers.

普遍运用的手段有附在商品上的赠券、各种抽奖活动、游戏、竞赛、降价销售、产品示范、各种奖励、样品试验以及钱款返还承诺等等。

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We will refund you your money in full.

我们会退还你所有的钱。

《牛津词典》

We will refund your money to you in full if you are not entirely satisfied.

如果你并不感到完全满意，我们会退还全部金额。

《牛津词典》

India's market regulator has ordered the group to refund money collected from investors within three months.

BBC: India businessman Sudipto Sen in court over alleged fraud

So even if you owe no federal or state income tax, you may still receive this money as a refund.

FORBES: Earned Income Tax Credit (EITC) Punishes Marriage

Bank accounts of two firms of Sahara, one of India's biggest business houses, have been frozen for failing to refund money to millions of investors.

BBC: Sahara firms' bank accounts frozen by Indian regulator