what rates have they offered you?
if you can show the savings development (the bank can show you how it will progress) i can help you a bit more
always consider saving that money and buying property, much better/safer.
Ask for inflation adjusted plans. The problem about long term savings is that things will get more expensive so 15 a week will become less and less.
stock indexed mutual funds. In the us we have tax free mutual funds for your childs education. there are no minimums and you could send them money every week. it may take a while before it becomes impressive but if you stick with it will be huge by the time she gets to college.