请问各位这句话用英语得怎么说?

Question

我测试了一下，优惠码能正常使用。要不您直接购买，到时我使用xx的退款功能退还您12美金以及多缴的运费。

Answer 1

I am convined that the discount code is working after my testing. Or you have another choice. You can directly buy without this kind of code, and then I will definitely refund you 12 dollars, as well as the extra fee about ship you paid. Pls let me know if you have any questions. Cheers!

Answer 2

I had tested that the discount code can be used normally. How about you make the purchase directly, and I will return $12 and the extra shipping fee to you with xx refund function afterward.

Answer 3

I have tested it, the discount code is available. if you love it ,please buy it first , you will get $12 Cash Back via XXX refund procedure and Free Shipping.

Answer 4

I testedthat the discount code can be used normally.

Or you can buy it directly and I will
return USD12.00 and overpayment freight to you by using the refund function
xxxx

Answer 5

为什么要查这句话？ ┗( T﹏T )┛