Poor Quality

I am disgusted with the quality of goods you guys stock. Last week the 23rd of February I purchased quite a few items to the value of R3700. Included in that purchase were 2 bicycles for my kids whose birthday was this past weekend. When we unwrapped it yesterday had to go back to the store because it was faulty. The 1 was then fixed and the other exchanged. Only to get home and realise that the ones wheel keeps going flat and have to pump it up all the time. Do you just stock such bad quality or what? We cannot be driving up and down all the time for something that is of poor quality. This is something you have to take upon yourselves and makes sure that what you sell to your customers is of a very high standard. Also included in the purchase were a few trays of purejoy juices only to find that while packing my kids party packs a few were already opened (I've taken pics of this). I'm happy to send this complaint to Parmalat themselves if you do not want to accept responsibility for this but I do feel that ultimately you should take responsibility for what you sell. I need some clarity on these issues before I drive all the way to the store yet again