Viloation email more than 1 month old

Hi

I didnt check my email more than 1 month and today i noticed adsense sent me an email about violation.
First i thought it is a spam because the subject of the email is "=?UTF-8?Q?Google AdSense?=" but the email is from adsense-support@google.com so i am confused.
I received the email more than 1 month ago but i didnt have problems till now.I didnt change anything at my web site for more than 1 year and at the email it was writing :

"Please make any necessary changes to your web pages in the next 3 business days.
Once you update your site, we will automatically detect the changes and ad serving
will not be affected. If you choose not to make the changes to your account within
the next three days, your account will remain active but you will no longer be able
to display ads on the site. Please note, however, that we may disable your account
if further violations are found in the future.
"

So i am confused about what to do! When i look at my site,i cant see any problems with violation and using like this about last 1 year. I'm making about 3000-4000 dollar every month and after this email i got my payment(email came at the middle of December).

It's like playing with a fire.I think i have 2 options :

1-Write them an email and explain that i didnt see their email till now. But i'm afraid that they will ban me from adsense.And if i write an email, i think i have to ask where is the violation and dont know if i can get an answer from them since they normally write very unspecific emails.

2-At the other hand,i dont think a company like Google will forget my account and violation email(and forget to ban me because of i didnt do anything in 3 business days).So maybe that email sent by mistake or find out that there is no violation or anything else so that's why they didnt do anything.Maybe it is better to not write anything and keep on like this.

What do you suggest and did anything like this happened to you or anybody you know?

PS:I am always to afraid to contact adsense because of taking attention(even though i didnt do anything wrong)

 

Just do the changes they demanded right away. It would be better to do what they asked you to do.

 

on this kind of violation notice, adsense dont want yo to respond and they will not reply back if you do. just make the changes asap and then, wait and see