Something similar happened with me. But I received the call that verification agent was coming for home verification. Then I called again and he said he would come after 2pm.
He never showed up. I tried calling and texting that number in whatsapp but no reply. This happened on 27th February.
My credit card application is still showing on process as on 3rd March.
I am going to lodge consumer complaint as well as rbi ombudsman if this becomes the reason for my application rejection.