Bill inserts are a low cost means of reinforcing the marketing message and boosting awareness of your payment service, how it works and when it starts. Include the URL with steps to participate, app name and IVR number.
Messages on bills and on bill envelopes are a low-cost way to announce your payment service and will support other promotional efforts.
Direct mail campaigns are more costly than bill inserts or bill/envelope messages; however, response rates are usually higher for this channel.