Achraf has impressed on-loan at BVB this season and management have already discussed buying the defender outright.
He said, "It's not something that worries me at the moment, my agent takes care of all that.
"Right now I'm playing for Borussia and that's all I have to focus on."
Achraf also told Funke Media: "My beginnings here have been very good, as I expected, I received a lot of help from my colleagues to adapt to the new environment, it was a very difficult step, to change the country, a new language and a new culture, but I had to make the decision and it was the right step for me.
"I'm young and I needed to play - and here I had the chance to do it."