aftermarket rotten

the tablet is great, received a gift in February, unfortunately the screen is broken (a small walk ??).
I asked for a quote for the repair and I have no quote. The after-sales service Archos did not leave me the solution to repair it. The proposal of Archos after-sales online service is offering me 25% off the purchase of a new tablet and as long as I send them the tablet that becomes their property !!
No direct dialogue, only mails. The standard I had a very kind person who gave me the email address of the service and repair is looping.
This is sad.