Alright, so I recently ran into a wall trying to verify an account because all the common web tools were heavily restricted. Someone recommended looking into virtual number for sms verification to get around the strict network filters. I went through a tiring cycle of failed attempts and banned test profiles before finding a true non-VoIP source. Taking a risk on a real mobile infrastructure line completely turned things around when the text arrived without any issues. It is a solid route to try if you want to bypass those annoying network blocks for good.