I need a discount website script.

I need a discount site script. I am looking for and buying a new, ready-made script for the discounts (collective purchases) Make a new one do not offer (not interesting) Why reinvent the wheel? Originality and individuality are not required

Please value your time and my time, if you do not have the skills and knowledge, but just respond to all projects in a template letter, then I will not answer you.