What should I do if it shows a verified number even though I have never verified it?

I don't remember verifying my phone number since I installed the Cashdoc app... But now that I've accumulated some cash and tried to use it for shopping, it asked me to verify my phone number. When I entered my number, it said it's already verified, so I can't do anything else.

What is this? It says I'm verified, but when I try to make a purchase, it says I'm not verified and to verify...???? Cache닥 administrators, what should I do in this situation? Should I just delete my account? But I’ve accumulated up to 14,000 in cash, so that feels like a waste ㅠ. It says my number is verified, but when I try to buy, it asks me to verify again—what should I do? ㅠㅠ Please let me know ㅠㅠ