account settled

good day

i have settled my account on the 27th and sent the proof of payment immediately yesterday i received a call from a lady called yolamise telling me that the account is not paid, i did aske her to transfere me to phillimon Dibobo as he is the one who sent me the settlement letter when i spoke to him told me that they have receuved the payment but others agent says payment is not reflecting i need the closure letter and proof that payment has been made, why are they sending me from pillar to post pls assist their contact numbers are **********