Get approve from user to charge him up to X later on
I'm new to online payments and would like some opinions on my task. Here is the scenario:

I have a website where people buy and sell products.

A seller has a product and wants to sell it. They create an ad on the site and upload the "item description" into the website database.

Buyers looking for products come to the site and buy them. The buyer pays the asking amount and then they will receive the product.

As the middleman, I'd like to charge the seller a fee or percentage of the selling price. The buyer shouldn't pay any website fees, just the selling price, just like on e-bay.

I know it's can be done using adaptive payment.

 
.

In addition to this regular product, I want to sell products to a group of buyers. the more buyers - the less each will need to pay.

For example, a seller want's to sell an image, the image is up for sale only once, and it will appear on the website for a week.

During that week - buyers can buy it,  BUT I want to charge them only when the images action will end for the "original image cost/buyers".

So for example, if the image cost is 10USD and it have 5 buyers - each will be charged for 2USD.

 
.

I'm not interesting in charging the buyers for the original image cost (10USD) and then refund them when the action will end.

I prefer to get an "approvement" on their behalf to charge them once for max 10USD. and when the action will and - to charge them for the new price without the need to ask them to go to paypal again etc.

 

 

please let me know what is the best way to do it.

thanks!

Get approve from user to charge him up to X later on
===

I'm new to online payments and would like some opinions on my task. Here is the scenario:

I have a website where people buy and sell products.

A seller has a product and wants to sell it. They create an ad on the site and upload the "item description" into the website database.

Buyers looking for products come to the site and buy them. The buyer pays the asking amount and then they will receive the product.

As the middleman, I'd like to charge the seller a fee or percentage of the selling price. The buyer shouldn't pay any website fees, just the selling price, just like on e-bay.

I know it's can be done using adaptive payment.

 
.

In addition to this regular product, I want to sell products to a group of buyers. the more buyers - the less each will need to pay.

For example, a seller want's to sell an image, the image is up for sale only once, and it will appear on the website for a week.

During that week - buyers can buy it,  BUT I want to charge them only when the images action will end for the "original image cost/buyers".

So for example, if the image cost is 10USD and it have 5 buyers - each will be charged for 2USD.

 
.

I'm not interesting in charging the buyers for the original image cost (10USD) and then refund them when the action will end.

I prefer to get an "approvement" on their behalf to charge them once for max 10USD. and when the action will and - to charge them for the new price without the need to ask them to go to paypal again etc.

 

 

please let me know what is the best way to do it.

thanks!
