Unacceptable customer service

In January this year my husband bought me a Fossil watch for my birthday. About two month's later it stopped. My husband took it to the shop where he'd purchased it (The Watch Movement, Durban, South Africa) and the battery was replaced. Two month's later the watch stopped again. We took it back to the shop and were told that it would need to be sent away for repairs which could take up to a month! I find this totally unacceptable! Clearly this watch was faulty to begin with and should simply be replaced! Please help.