1 £40,000 is the figure that has been bandied about:
spread (about), put about, toss about, discuss, rumour;
circulate, disseminate, communicate, purvey, diffuse, broadcast, publicize, make public, make known, pass on, propagate, promulgate, announce, give out, repeat;
literary bruit about/abroad.
2 I'm not going to bandy words with you:
exchange, swap, trade, interchange, barter, reciprocate, pass back and forth, give and take.