How to transfer airtime to MoMo account

I'm trying to transfer money from my Momo account to my opay account but it's showing me error please try again later

Chibuzo Freeman okeke

I recharge airtime of N2,000.00 via myMTN App on 10/09/2024 using Bank Transfer Method of Payment. Transfer was successful but value was not credited to my line 08034502750