Regarding to update society mutations

We(me and my wife), have purchased resale flat in cooperative service society at ahmedabad from one owner in october-2019 by registered sale deed. She has handed over me all the documents including society share certificate. But the share certificate was issued by society to her in join name with her husband because the flat was purchased by join name by them from builder. So initially they have registered in society in joint name and holding 5 share in join name. After 1.5 years husband have given his part in flat in favour of his wife by executing registerd gift deed by paying liable stamp fees. There after his wife had been a only owner, but she had not applied for removal of her husband's name from membership record and share certificate. So currently in society membership entry and share certificate two names are there both husband and wife of last owner. Now we have applied to update the mutations in favour of us, but society administration told us that this can not be possible because previous mutations have two names and actually it was one owner at the sale time. And further more last owners are shifted to USA. What to do, please suggest appropriate solution to do mutations up-to-date in favour of us. Help us