"3 months after 2 stents feeling worse and worried"

My uncle had 2 stents implanted in October and is now feeling worse - in pain - almost fainted at rehabilitation clinic appointment, is on one full tablet a day to mitigate angina and was told by cardiac unit that if he needed to use inhaler more than twice in one day to ring 999. This is just not good enough. His GP has had to write - yes write - not ring urgently - to try to arrange an urgent follow up - if any one who reads this can help us please do so. thank you.