| Problem | Likely Cause | Fix | |---------|--------------|-----| | Blocked caller still reaches you | Number not correctly saved (e.g., with/without country code) | Add both formats (+1 212-555-1234 and 212-555-1234) | | | Caller is spoofing a different number | Cannot prevent; report to carrier | | Cannot find Blocked Contacts menu | iOS version older than 7 | Update iOS (Settings → General → Software Update) | | | Restrictions enabled | Go to Settings → Screen Time → Content & Privacy Restrictions → Phone → Allow Blocking | | Unblocked number still blocked | Sync glitch | Toggle Airplane Mode, restart iPhone, or re-add then remove the block | | Missing voicemail from blocked caller | Carrier filters it into spam folder | Check carrier voicemail app (not Phone app) |