You need to store each key after you enter it. So, put in the 00 key, then store it. Change to the 01 key, put that in, then store it. Make sure you have the correct provider selected for the keys you are entering. If I remember correctly, in the UK you need to put in the codes for all providers, but maybe that's only for doing a scan.
You need to enter all the codes for all providers not just your own provider try that first and try to stick to the same thread ok