You need to specify which forms of payment you are accepting:
Originally Posted by Lapsus
I) All auction, buying, and sales threads should state which forms of payment are being accepted/offered, for example "TC only" or "high-value items".
Also note that posts inquiring about the preferred payment option which aren't offers are treated as useless, and punished accordingly. If form of payment wasn't stated clearly, it should be assumed that both items and TC are accepted.