Nope. He offered nothing apart from the swap.

Not quite. The banker initially offered the swap and then asked Jayne what it would take for her to deal. She initially said £15,000 which the banker treated with derision. He then gave her another chance to give an amount that it would take for her to deal and she repeated £15k - at which point the Banker returned to the swap offer.

A very interesting game today, at least she won £10,000 from box 23.

I like these sort of games provides a bit of tension.

I think she would have gone to 23, if she had won the £35,000