I believe this is due to the platform you're trading on. Certain websites deal runescape money for sale with players like garbage collectors, however when they sell them to players at a different cost it is not acceptable for me. Therefore, you must choose a legitimate platform in the event that you do, you'll suffer many times.
I typically trade RSGold through the RSorder.com website, in part due to the fact that no matter what it is the price is always transparent and fair, and is in line with market prices. Additionally, there is a customer commitment to service. When I sold just OSRS Gold at RSorder, the customer service was also enthusiasticand they have would like to get osrs buy inferno cape in the hands of players. This is due to the security of accounts, RSorder only trade items that are purchased online by real players, and OSRS Gold. Therefore, players can feel at ease buying OSRS Gold.