Finally there is a video rebuttal to those Purplebricks ‘commisery’ adverts, but who would have thought it would come from another online agent?

HouseSimple, which shifted from an upfront to ‘no sale, no fee’ model in only April this year, seems to be proving  there is no zeal like that of the converted.

It teamed up with marketing agency House of Experience to video a social experiment looking at how consumers feel about paying for a service – in this case for a meal – upfront.

You can view the reactions of restaurant diners who are left dumbfounded when asked to pay £250 — before they’d even ordered off the menu.

The clip shows friends and couples examining the dishes on offer at a well-known restaurant in Manchester which was chosen for the comical social experiment.

Diners were seated and given menus, noticing that dishes start from just £10. A waiter then approaches the test subjects, clutching a chip and pin machine.

He then informs bemused customers that it is restaurant policy to charge a set fee of £250 per table upfront — even if their chosen dishes are less expensive.

One man remarks: “But it’s only £10 per dish. That means I have to have 25 dishes to get my 250 quid!”

Two friends who popped in to enjoy a glass of prosecco were then confronted by the waiter who demands they immediately pay £50.

One responds: “Can you not just put it on the bill… like at the end?”

Others question whether “Is this a joke?” while one woman demands to speak to the manager.

One man, who did not take the restaurant’s up-front payment policy too well, asks: “Do you not trust our faces?” before declaring “I’m going to ****** leave then”.

The clip ends with a message from HouseSimple stating: “We won’t ask you to pay upfront like other online agents.”

Sam Mitchell, chief executive at Housesimple, said: “We wanted to make a point with this experiment: that in certain situations people don’t react well to paying upfront for a service they haven’t yet received and in some cases, never will.

“If we don’t expect to pay upfront in these situations, why should this differ when buying or selling your home? The film captured and reinforced our decision to be the first online estate agent to have a ‘no sale, no fee’ proposition.”