Remote Central Locking 2002 Hyundai Coupe 1.6 ?

I received an answer from Hyundai about resetting central locking. I tried what they said it worked for a while and then when i went to open door the alarm went off and car wouldnt start. i got the alarm stopped by pressing the buttons on the fob with the drivers door and bonnet open. i am now using the key again to open car. is there anything else i can do?