Received wrong replacement equipment..what now?

I upgraded to the Arris XG1v4 DVR box a short time back, and the box has seemed erratic ever since, losing TV connection requiring to disconnnect/reconnect power and "reboot", which is also intermittent. I also have 2 of the Xi6 wireless boxes for bedroom TV's. I ordered a replacement XG1v4 box on the website in my account, making sure to select the correct box by make and Serial Number.

Today I received my package, but instead of a replacement Arris XG1v4 box, I received 3 new Xi6 wireless boxes. The order is totally wrong.

I tried using the online assistant, but it appears to just be AI now, and just gave me a generic answer that orders are confirmed via email and wanted to know if i wanted to check my notification settings. No real person.

There was also no return label, just 3 brand new Xi6 boxes, as if they think I wanted to add 3 new Xi6 boxes to my account.

What should I do here? Go to the local store? I hate the thought of it :)