If you prefer making mobile money payments to till numbers via M-Pesa, you have probably sent cash to the wrong till number. Besides sending money to the wrong till number, many Safaricom customers have also sent money to the wrong mobile numbers. Once you realize you have sent money to the wrong till number or you want to reverse Lipa Na M-Pesa transaction, the best method is to dial the Safaricom customer care service through 234.