Bro, its good that you agreed to pay back in full but the sum is not a very big amount and to pay back only by 8 Feb 2013 is a bit toooooo loooong. There is no commitment on your side. You should at least pay back half now and the other half say in 2-weeks time. Just my humble opinion. But at least, you have agreed to pay back and that is a good first step.