The link he sent me was to buy the TD-W8961ND which is what I then bought
No, see message 7 of the thread. Message 6 was confirming the device you had was ADSL
This is the one you need https://www.tp-link.com/uk/service-provider/dsl-router/td-w9970/
That is ADSL and VDSL. £40 or less.
I'm dyslexic and that was misleading to me. The link he sent was not the one I had. I'll try once more with that other one. its costing me a fortune in return postage.