No after sales service

Multiple orders. 1. None delivery, Makro not interested and had to resolve with 3rd party. 2. Incorrect delivery and again Makro not about to resolve it. Do I have to stop my wife from using Makro and stop promoting this poor service? Should Makro not improve its online service within the next 6 months they will lose customers back to PnP who is currently turning their poor business around.