OP thank you for this update. I have only used Remitano and Bybit and my experience have not been bad. But there were two exchanges that were approved by the Nigerian government Quidax and Busha. I tried to check if Quidax has Bech 32 SegWit address for deposit but didn't get much information. But it seems Busha uses the SegWit address for deposit. Since these exchanges no dey popular, no need to add am for the OP. I know even advice anybody to use these two exchanges because they don't look serous.