Useless Ebucks Shop

I returned a phillips razor which was under warranty to ebucks from where I purchased it . It was on order ***6. It has been about 6 weeks since I logged the return. Over a week ago your representative phoned me to tell me the supplier has seen the device is defective and will issue a credit. I explained that is useless to me. I bought it off your shop when it was already on 50% off sale and I bought with ebucks which gave me further 40% off. So giving me a credit does not get me a new razor. The item is under warranty, the supplier must repair or replace. You agent promised to phone me back same day which did not happen. I then phoned a few days later (Ref Rs***) and they promised to get agent responsible to call me back and that also never happened. This is ridiculous now. Can someone please contact me back and the supplier needs to replace the item. Simple as that. The same unit is still available for sale.