1st Solution –
Remember where your account was created initially, & if you are located somewhere else now, connect with a VPN to your original account Creation Location and try to join. Once you connect to the Original Country Location, login to Incontigo Mode and Try to join our family 3-5 times. It may fail on the first 2-3 attempts.
2nd Solution –
1. Make sure you are logged into your account.
2. Visit this link and check how many profiles are there – https://pay.google.com/gp/w/home/settings
3. If you have more than 1 profile delete all the fake profiles and keep only 1 profile that matches your current IP/Location.
4. If none of the profile matches your current location, delete all of them.
5. Once all done, login to Incontigo Mode and Try to join our family 3-5 times. It may fail on the first 2-3 attempts.