I am also having issues porting out of Visible and going to T-mobile because I need roaming while in Mexico and Visible does not offer roaming at the present. For the last 4 days, I have been trying to port out my number and T-mobile says that my account number is wrong and they are receiving an error while trying to port out a number. Visible says that my account information is correct, so I am stuck in the middle and I am able to call out of my phone, but cannot receive any incoming calls.
Did you solve the issue?
I have the exact same problem. I am trying to port out my number from Visible. My new service provider says the account information I provide is incorrect therefore port request is being rejected by Visible. On the other hand, Visible says the account information is correct however they are not receiving any port requests for my number. I am very frustrated!