The phone numbers are correct. I recorded the competition segments, to make sure. They always use the same phone numbers, for their comps.
I entered by SMS and got a reply, straightaway, thanking me for entering. So, the SMS number is definitely correct.
Also NO codewords needed for this comp. I watched and recorded the whole show and they never mentioned a codeword once.
PS: I just rang the 1902 number and entered my details. So, the 1902 comp line is working fine now.