Is it true that if you form a good relationship with a customer, they will deal with your company strictly because of your good relationship?

Not necessarily, customers buy for various reasons "friendship" inclusive for instance quality, packaging, branding, durability, availability, attachment of prescriptions, beauty, display, multipurpose products etc. However the company stands a greater chance to make sale & further sales (repeat/ loyal customer) from this customer because of the relationship between their employee & customer.Thanx for the invitation

Yes, but not always. Customers make their purchasing decisions based numerous factors. But a healthy relationship surely affects his/her purchasing decisions most of the time. 

Sometimes it may increase the work relations & business volume but in fact, we should separate the personal relations from the official business ones.

Yes, its true. the relationship is one the important sales skills.

That could be a solid backbone along with delivering on promise and being a step ahead of his/her expectations (in a good way).

Sure but you must follownup with customer very closely 

Yes, absolutely 

World class service is everything, you can also get more business as they will refer other clients because of your excellent service 

This is half of the truth. A customer will come back not just because of the good communication skills of the employee, but and for quality of the goods.

If the customer find most of his needs in our company and he doesn't find better offers from other companies, i'm sure he will deal with my company strictly because of that relationship between us.

Every customer wants a good relationship with the clients. 

Friendship with the customer counts always. They will always rely on your service and the role that you play in your company which makes a difference.

Yes, Relationship is very important, but customer satisfaction also is also important like better commercials and sustained service which will provide a long lasting customer