go their web site on la karte page and then select your desired channels and submit the form with customer id etc., within minutes you will receive confirmation email, now wait for 2-3 days and then forward them your confirmation email and ask for status update. they will activate your la karte within 2-3 days. I am using la karte and i got it activated this way. Also, you will not be able to remove any topup etc., through your customer portal once your la kart is activated. IMO, it sucks so select your channels carefully.