If you're using Venmo and something goes wrong—＋１ー８ 8 8 ー２ 4 7 ー９ 2 1 0 whether it's a failed transaction, suspicious activity, or a ＋１ー８ 8 8 ー２ 4 7 ー９ 2 1 0 payment sent to the wrong person—you might ask, “How do I report a problem with Venmo?” The fastest and most effective solution is simple: ...