HI
we should be able to help you,
what is the app they are using, google auth?
also are you able to change the phone number to get the sms to a place where we can read the codes?
We specialize on co-located teams in South America with constant training and we aim for indefinite long term business relationships, we work by providing full time programmers, but this is project is small enough that we can quote it.
Sincerely
Pablo V
Atlanticsoft