I have an Extra Regular Savings account. I was just transferring €1k into it. I went to another tab and when I came back my balance was the same and the submit button was still there so I clicked it again, thinking I hadn't done it initially. 

Now I see I transferred the money twice. €1k is the maximum. 

I've transferred the extra €1k back out to my current account.

Will this affect my bonus rate?

This forum closes today so might be better to give them a ring to check your account.
https://www.boards.ie/ttfthread/2058117859