How to remove panel on Creda T620CW to replace relay switch?

I have bought a replacement relay switch for a Creda T620CW tumble drier. I assumed, perhaps wrongly, that all I had to do was to remove the top plastic fascia to swap in the new switch. I located two screws under the timer control and removed them. However when I tried to prise open the fascia it refused to budge. Are there other screws I don't know about? Do I have to unscrew and remove the entire front panel? Any help would be appreciated.