You cannot have two broadbands on a single line, even though they are different types.
Specifically, the filter on the line in the FTTC cabinet removes all ADSLx frequencies. Including the ones that would come down the copper from your exchange if you had ADSLx. The line has to go through the FTTC one to pick up the fibre connection and output VDSL2 to you with the phone frequencies.
Kindness isn't going to cure the world of all its awfulness but it's a good place to begin. Daisy Ridley.
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