Discount codes don't stack. If you have 57% off discount, they can't also use a "free shipping" coupon since Only one discount at a time can apply to a single order at the sikaic site.

Yes, you must have a valid sikaic account in order to buy an item at the sikaic site and use your coupon. During the process of buying an item on our site, you can use your sikaic account to see more of our services.

Of course not, most coupons may be used only by you when you received them directly from sikaic. As the sikaic coupon includes your User ID, it cannot be resold or transferred in any way.

Yes. Coupons for each Discount Event of sikaic will be collected here while being updated day by day. Sometimes, there will be deals not updated promptly but it's rare, we expect sympathy from you. 

Our advice for you to use sikaic Coupon effectively is to choose the right day.
Like thousands of other consumers, the time of promotion is when they choose to
shop at sikaic, so take advantage of coupons released on those days to save.

All deals from Promotion Programs of sikaic are collected here. For each certain occasion, its coupons will be on the top of the coupon list, and surely they always come with an expiry date.