Effects of replying to a Sky spam email

[UK1]

I just received an email from Sky with a survey re a call with Sky. As I had just had a very negative experience. I completed the survey. No confidential information given. Noticed that the email  came from medillia.eu email address which I now think is probably not a Sky email address.  Does anyone know the effect of clicking on the survey button and replying. Is the a commonly used Sky scam email?

[caesarome]

@UK1 

What personal details did you give, so did you supply your username and password because if this was a spam email then changing your password is something that you should do:

https://skyid.sky.com/resetpassword/

[AndrewF_UK · Accepted solution]

@UK1 Medallia is a customer experience tool. Comcast (who own Sky) uses it for surveys and various other customer service requirements. Nothing to be alarmed by and it's not spam.