For some unkown reason I have many duplicate contacts in my Google account. More than 18.000 duplicates. This causes big problem on Android devices.I have tried several suggestions which I found in forums. Such as https://productforums.google.com/forum/#!topic/gmail/WIUTlfWCe98 .I made Find duplicates and then Merged, but it didn't help.I also tried using special android apps for duplicate contact deletion, but it didn't help either, as contact was reapearing from my google account.Finally I realized I have one particular contact repeating for thousands times. I tried deleting it in https://contacts.google.com/preview/all, but it didn't help. Strangely contact is reapearing after deletion.Any help?
Can't delete Google contact (fix Google Contact duplication)
google contacts