Hi Amanda, evidently the leisure centre has a policy of not responding to questions posted via google, sigh. I reported your question and the staff are mortified that someone told you not to swim. They asked me to ask you to please phone the centre and ask to speak to the manager, Ben, who will get to the bottom of this for you. And please swim - you are very welcome!
Report the receptionist! This is unacceptable. The pool area has facilities for the disabled and is used by people with a range of disabilities. But I don't know if they have a hoist, if obe is needed.