How we can re-build a new relation ship with a VIP customer that been completely dissatisfied from our service in Retail field ? what suggestions ?

Buy his child a cat or a dog ð

Offer him or her the best quality of your product which is the most expensive one, for free, try to impress him or her by sending the product as a gift. And request the VIP a feedback about that product.

Managing your reputation online and offline is very important. So negative feedback is something that you don’t need.

However, to re-gain the trust of any of your VIP customers you can do the following:

To be a connector. 

The first thing you should ask yourself, 'What can I do for this person?' Be the person who can make those introductions.

Consistency: Be consistent by creating opportunities, Fix the top issues that customers have and monitor your customers on all their social streams.