Not 2 hour access only one and a half!

I went onto their website and bought a voucher to go to the lounge. It says 2 hour access so bought it in advance. Arrived at lounge for my 2 hour access only to be told they work out the time on the plane leaving not boarding. So why bother paying R249 for one and a half hours. I said look at your website and they just shrugged and said pay more. They allow all people with credit cards to access but the actual idiots like me who bought a voucher directly with them means nothing. No point in using this service. Actual evidence provided of time at lounge, boarding pass and picture of staff included in comments.