There are quite a number of companies out there that do this and I was quite nervous that we would end up getting scammed but that is not at all the case here! They were quick to respond and the process was very easy thanks to their detailed instructions! Within days of receiving our marriage license my spouse was able to update S1 and have his orders amended with me on them. Very grateful for how amazing the entire experience/process was, it couldn't have been any easier. Highly recommend.