Before sending funds to trade on your centralized exchange, always check at immediate time If the exchange still allows NGN (#) P2P because the way naira is been scrapped off from the P2P feature is overwhelming.
Ignorant to do this verification before sending funds from your self-custodial wallets to the exchange wallets will always cost you excess expenses on transaction fees from an exchange to another before you could realize yourself and call it mistakes.
although it's not advisable to hold much of your coin in an exchange, it's not Everytime you receive some fund ina n exchange that you trade it out ASAP. Some people have routine time they trade there coin into fiat which can be in monthly bases and some might HODL it for more than a month month before even doing a p2p transaction that converts it to fiat.
But in general, it's not out of place to check out and be sure that the exchange you're using still has NGN as a P2p option although at the moment I haven't heard any news from the angle of our government that seems to be suggesting that they are still furging ahead with thier intention to delist naira from the other exchange we're currently using now. If thier is a rumor like that, then it's wise to be all to cautious but even if we end up sending our funds to an exchange we've known in the past to have NGN but now lacks it due to our government regulations, it's just a matter of small additional charges that will be incured and it's better than transacting with an unpopular exchange that will serve as a seriius threat to our fund.