CreditMantri — harassment regarding proof of payment for neft in spite of submitting utr number

Address: Hyderabad, Andhra Pradesh, 500029

Website: Credit mantri.com

Sirs,
Upon my authorization, credit mantri, chennai office sent an invoice to cleared my restructure and settled credit card of standard chartered bank with rs 10761. I remitted the amount by neft on 29.12.18 and sent the screen should of the sender bank's message utr number. But still the credit mantri staff is harassing me to submit proof of payment. Kindly convince them that utr number is ultimate in neft.
R ramamohanrao,
Account number :[protected]
Mobile no.[protected]