Poor customer service, poor benefits on Multiply

Sent Momentum an email regarding my concerns about the poor benefits I'm receiving on their Multiply program, specifically referring to Multiply members getting discounted on a R1095p/m fee of Virgin Active (nationwide package), while for the same gym membership Discovery Vitality members are getting discounted on a R890p/m fee (the same package which is listed on VA's website as costing R890-R1095p/m). Oupa Mmamabolo from Momentum rep**** that the agreement between Momentum and Virgin Active is confidential and I should call Momentum to find more information. Clearly missing my point that I'm complaining about the poor benefits and possibly considering moving to Discovery. I'm also wondering why Momentum has an option to email them if they're only going to ask one to contact them via phone??