I keep getting a error message that reads "Sorry, an unexpected error has occurred" when I try linking my Activision account to twitch. I have also tried logging in with xbox but I keep getting redirected to the screen where it says I need to link accounts. I have checked on both twitch and my Activision account and it says I am linked. I had problem claiming the previous prime pack
Hey, I'm sorry about that. Have you tried using a different browser, tried to link the accounts in incognito mode, and as well try clearing the cache and cookies on the one you are on?
Also did you try logging into your account on callofduty.com before logging into your Twitch account?
If you are still running into the same issue after trying these steps the best suggestion would be to reach out to official support. They will be able to gather more information and assist further as soon as possible:
Contact Us(Live Chat):https://support.activision.com/contact_us
Twitter Assistance: https://twitter.com/ATVIAssist
Facebook Assistance: https://www.facebook.com/ActivisionAssist?fref=ts
The live chat hours with an Activision agent on the contact us page are from 11a.m. - 7p.m. Pacific Standard Time