Change permalink

Hello,

I’m creating 3 different websites with your nice theme. In 2 of those, the permalinks are exactly like I want. But in one of this websites, in the Services Page, the permalink appears like this: http://sw.wordpress.pratbcn.com/services-2/ and I don’t want the number 2 at the end. I try to delete the number 2, also I delete the page and I created again, just in case, but the number 2 is still in there. How can I eliminated the number 2?

Warm Regards.

Alexia.