@Tinamccleary
If you want suggestions from fellow customers in this community forum, you'll need to provide some information about what's happening in your situation, such as which cameras you have, whether you're doing a new install or a re-install (and why), and what's happening when you try to install or reinstall.
To contact Support (the steps may have changed slightly):
1. Go to https://support.google.com/googlenest/gethelp.
2. Select a category/product family, and type in a brief description of the issue, then click "Next".
3. Select your device from the dropdown, click "Other", then click "Next step". (You may be asked to enter your serial number; if you don't have it handy, just leave it blank.
4. Under "Resources", just click "Next step". (Clicking one of the listed links will bring up a Help page.)
5. Under "Contact options", choose to get a phone call or chat with the team, depending on availability in your country
