Consultant aware and gp.
Those are high figures (As you are obviously aware), but have you been tried on a variety of medication for the hypertension? I only ask, because at long last I have changed GPs, largely because of the incompetence they exhibited when treating my high blood pressure and sleep apnoea.
I was on Lisinopril for a few years, but my blood pressure was not coming down (170/120 typical). When I changed GPs the first thing the new doctor did, was to put me on a minimal dose (15mg) of Amlodipine, and hey presto, my BP is now in the region of 140/85.