How to remove "Special Offers" WDTV live (3.gen)?

With new firmware 1.13.18 in europe i got a new tab Special Offers with promotion from acetrax movies. I dont want to see this or any other promotion. I see it, dont need it and now want to remove it.

Is there a way to remove this tab?

If there is no way  to remove it, i think about to send this box back, because i hate spamming and i never will pay for annoying me. :angry:

In because I want to remove it after I have redeemed the offer.