Radio RDS TXT problems

I listen to the radio on FM in my MG3 Form Sport. I have read in the manual about the RDS TXT function of the radio. I assume this is the "scrolling song details" text that I saw on the MG6 courtesy car I had.



Anyone got this working, and if so how, as when I press the MODE button as per instructions to get the RDS selection screen, nothing at all happens :confused:



Have I got a fault with my radio or not ?

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