Complaint About Not Receiving Confirmation Code From Konami

I am having a serious problem with logging in to my eFootball account on mobile via Apple App Store because the verification code is not being delivered to my phone. Since 28 August, every time I try to log in with two-step verification, the system says that the verification code has been sent, but I do not receive any SMS on my number. I use a GLO line in Nigeria and other SMS messages arrive without any problem, so the issue seems specific to the verification code for my eFootball / Konami ID. Because I cannot receive the verification code, I am completely locked out of my account and cannot access the game. I have not been able to solve this on my side. I kindly request that you check and fix the problem with sending the verification code to my phone number, or provide another way to verify my account so that my login can be restored as soon as possible.