Surely punters have the right to negotiate

[jggy2003]

Just today I pmed an escort who invited one to make appointments that way. As part of my enquiries I asked about the chances of a price reduction and the reaction was 'you are insulting me by asking me to devalue my body' My response is/was I ALWAYS look for a better price.
What do people think ? Is the 150 punt nearly twice as good as the 80 punt and shouldn't escorts be open to negotiation ?
Who decides and how do they do it how much sex with any woman is worth?