Blacklisted P.T

Hi there<br> <br> I was a personal trainer at the Balfour Park branch from March 2015, by the end of the second month i felt i wasn't making enough of a profit to stay with Virgin Active and had prepared my emails and so on to leave the branch by May. I PAID in FULL the due amount for MAY, I was not a personal trainer for June whatsoever and yet have now been blacklisted and told i have to pay a second amount of R4196.00 which i refuse to pay. I was told by my manager at Balfour Park that with not having any clients and not having any more booster packs to do that the final amount of R4196 that i paid was the last amount i needed to pay which i dutifully accepted. I am tired of this and have dealt with multiple people over the phone and nothing seems to be resolved. I don't really want to leave the club but am close to considering it, there are more than enough great gyms around my area. Please accept that i paid my due and having served Virgin Active it would be nice to be treated better.