Tiktok shop users, how do coupons work here?

How do "XTRA" or "EXTRA" coupons work?

I'm a first time buyer and i have placed an order for an instrument. after i've placed my order i've been given additional, way more valuable coupons(savings are gonna be massive). I tried to cancel it once to place a new order, the coupons labelled with "EXTRA" disappeared but not the ones without the extra tag, but what if i placed an order for the same product and canceled the previous one, will the coupons also get canceled on the new order?