False promises

I joined my second child at club V Virgin Active Northridge Mall Bloemfontein in April,Louise the admin lady who helped me said that they were running a promotion for April should you join your child in that month you receive free membership for that child for the rest of the year,so she explained that she was going to load her on the system as a public member and not vitality,which all made sense,but then my debit order went off in May with an extra R75,I spoke to Grace at Northridge mall Virgin Active who assured me that they will refund me in 7working days,never received the refund,and then this month the exact same thing happened,so not only are they taking more money from me as what they should be taking since the vitality fee is only R35 a month they are also breaching their promotion terms and conditions,how can you advertise one thing and then deliver something completely different,so fed up with all these false promises,utterly dissapointed!!