Consistency is the key to success for any organization. Every customer who is connected with your organization desires services that are consistent. Stick to the services that you offered to your clients and ensure that clients remain satisfied with them. If you promise them certain things and are unable to keep it, then this would bring negative reviews for your organization.
You should always stick to all the guidelines that you offered your clients before they bought your services. Always be consistent with the price of your product/service as well. If you have offered them a certain price, make sure that they are not made to pay more than what they were asked for. Being a Consistent Service provider would increase the number of positive reviews for your organization.