If you fit look the first statement from the vendor as shown in the screenshot above, it clearly said "The offer you opened is a negotiation offer", which also means that before you might have accepted the trade, you must have seen it stated that the offer is a negotiation offer before accepting it. Because one thing I have noticed about people who does this kind is thing is that they usually add like 3 to 5 Naira to the current rate of dollar to Naira
(i.e if the current rate is $1/#1550, they will make theirs $1/1552). So that their ads will be at the top, and the worst thing about them is that they usually don't use to sell much, as their limit is always around $5 to $10, so that if you want to buy $10 at a rate of $1/1552, they will then negotiate to deduct #100 or more from the trade. And then use it to cover the extra #2 to added to place their trade at the top.
Hence, the best advice I can give is to avoid accepting trade with any user that claims to negotiate price. Because such comments is always visible on the dashboard before accepting trade with vendorsI don't really like when someone justify bad behaviour. It is clearly that $1/#1550 why adding the additional 2 or 3 to it. That is fraudulent behavior and it is unhonest character that manipulating the exchange rate to favour themselves and you are justifying such.
