Relationship marketing is based on managing customer relationship; as well as relationship with other parties. According to GrÖnroos (2001) found that when a relationship has developed is to calculate how many times a given consumer has made buys from the same company. If there have been a number of regular buys, or agreement has been effective for a certain extent of time, one might say that a relationship with this consumer can be a sign of the progress of a relationship between company and this consumer (GrÖnroos 2001).