the completed guest review may be -lrb- a -rrb- uploaded onto the relevant supplier 's information page on our platform for the sole purpose of informing -lrb- future -rrb- customers of your opinion of the service -lrb- level -rrb- and quality of the supplier , and -lrb- b -rrb- -lrb- wholly or partly -rrb- used and placed by booking.com at its sole discretion -lrb- e.g. for marketing , promotion or improvement of our service -rrb- on our platform or such social media platforms , newsletters , special promotions , apps or other channels owned , hosted , used or controlled by booking.com and our business partners .