Lewis Stores: Non-existent Customer Service

I bought a bed and microwave from Lewis a few months back. The mattress started sagging on the sides and I have contacted the branch I bought it from. It has been almost 2 months now and it's still not sorted out. When contacted the person at the branch who handles my query, I don't get any response. Next I phoned Head Office who has been keeping me updated and they experience the same problem as me: can't get hold of the person at the branch who handles the query. This is truely the worst customer care service I have ever experienced in my life. Customer care at Lewis Stores don't exist in my eyes. They are quick to take your monthly payments but drag their feet if you have a problem. Surely something to think about before you buy anything at Lewis. Maybe other branches provide better customer care than the specific one I bought from. I definitely won't be making any purchases from them ever again.