Unable to connect to Zwiftpower

I am unable to connect to Zwiftpower. I have got a Zwift account, and I also have a Zwiftpower account, but the two will not link. I have found my name in Zwiftpower, and applied the 4 figure code via the Companion App as instructed. I even went onto Zwift to check that the code is after my name - which it was. When I get my Zwift ID and input it in the appropriate box in the Zwift Connection section, I keep getting the message " Cannot find verify code in your Zwift name".
What the hell am I doing wrong!!!