Once again, thanks for the additional information!
I’ve not yet seen the first message you reference. If one accepts it at face value, it says Google Voice cannot send a text message with the needed verification code. Just for clarity, have you tried the option to receive a voice call at the same number GV won’t send a text message to? GV still offers that option but it’s no longer the default. One must select the option as highlighted in my previous post.
I have seen the second message. It’s indicative that one has tripped GV’s anti-fraud measures. GV now tracks how many times a number has been used to obtain a GV number and/or whether it’s linked to an existing GV number. Basically, Google aims to make it more difficult for someone to claim multiple GV numbers as a security measure. This enhanced security is relatively new and has been in place for the last year or so. Google does not specify what combination of events triggers its anti-fraud measures to make it more difficult for those who would try to circumvent it.
I appreciate one shouldn’t need to jump through these hoops, however, might you have another number besides your Republic number to use for claiming a new GV number? Even a landline will do if one selects to receive a phone call rather than a text message. Once claimed, it should be possible to forward the new GV number to your Republic number if you like regardless of whether another number was used to claim that number.
If no other number is available to you (and since I’m having no issues claiming a new GV number), I have one other thought. I could claim a GV number for you, which you would then transfer to your Google account. It’s possible to transfer GV numbers between Google accounts. I believe I can set this up but you would need to be OK with me knowing the GV number since I’d be claiming it for you. Other than that, I would need no personal information from you. I understand this may come across as an unusual offer from someone who is essentially a stranger you’ve met on the Internet, however, the offer is genuine. If there’s any interest, it would be better if we arranged the details via direct message privately.
Indeed, my testing confirms your experience. As mentioned, I’ve used this particular workaround in the past, however, it appears Twitter has closed that door.
My understanding is Republic is working to get Twitter to accept the reality that Republic numbers can do everything Twitter needs them to do and to convince them to support Republic numbers. This is unlikely to be a quick fix. The conventional wisdom would be to suggest you contact Twitter support directly and ask they whitelist (make an exception for) your Republic number. It certainly wouldn’t hurt for Twitter to be aware their current refusal to support Republic numbers is negatively impacting folks who wish to use their service. Having said that, I’ve already tried this myself and got nowhere with Twitter.