If the answer is yes then the Bigpockets Education Loyalty Points Scheme could be the solution to your problems.

Every education facility registered for our school only section will receive an individual Loyalty Points code, this will be used to register points for that particular facility. This code can then be distributed to all associates of the School, College or University be they Parents or Teachers, and for every order of £50 or over placed using this code the education facility will receive a Bigpockets Education Loyalty Point. A further point is awarded for every ubsequent £100 spent over the initial £50, so for £150 you would receive 2 points, £250 3 points etc.