Value for money

I bought a caterpillar boot less than 6 months ago. The heel is loose, send it to the store and the manager said to the person I send he will exchange the boot she must leave it there. After 5 hrs I contact the store and ask what's happening with my boot, why does it take so long for them to exchange it. The manager decide that there is nothing wrong with the boot, he will get the other manager from the other store to check for me. Clearly he is *********** to do his work, or he is lacking the necessary retail knowledge. What makes me upset is that he say one thing and then change his mind. Makes a person wonder on what ground did he change his mind, is he bias, should I continue. And to top it all you contact the customer service,18/08/15, they don't respond till today. Numerous emails were send, u keep calling and no answer since last week. U spend a lot of money on a boot that don't even last you a year. Someone needs to step up!!! Why do u have a customer service dept if they can't do the job. Now I must waste my energy and contact the NCA!!!