Dexcom 7 plus users in the UK

I am seriously considering one of these as I have a fear of hypos, a HbA1c of 10.4, and I think it could help me.

I’m just trying to get a grasp of the actual costs as i would be funding it myself. Someone mentioned sensors are £54!! Is that for one? So its £50 every 7 days? Seems a lot.

How long does a transmitter last?

What is the initial cost for the whole kit?

Where should I go for more info apart from here, should I ring Advanced Therapeutics?

Thanks in advance