"买1000,送500礼品"怎么翻译?

You can get a 500 yuan worth gift as long as the amount of products you buy is up to 1000 yuan

up to ．．．积累达到．．．

句子翻译也未免太长了吧，建议短句的好
应该理解为消费1000元,赠送价值500元的礼品吧

Consume 1000 yuan,present gift worth 500yuan.

Buy 1000, sent 500 gifts

Buy 1000 yuan, get 500 yuan gifts free.

Over 1000,sent 500 .