(19)In order for the revenue redistribution scheme to foster an on-going dialogue between the CTP for shares and ETFs and each data contributor on the quality of data submitted, and thus to ensure that the suspension of the participation of a data contributor in that scheme is used as a measure of last resort, it is necessary to specify minimum requirements that ensure that the process for suspending a data contributor from that scheme is transparent, non-discriminatory, fair and efficient. In particular, to avoid that such a suspension decision is taken on the basis of incomplete or inaccurate information, the CTP for shares and ETFs should share with suspended data contributors the information supporting the decision on the suspension and allow data contributors to submit additional information both prior to and after the decision has been taken.