Utterly Disappointing Client Service

Being an avid customer of the platform.Im very disappointed in the level of amateur client service I received. On the 29th of August you had technical issues with your site and one could not check out and process your items (this was confirmed by the agent).The next day I logged a complaint via the support center as you guys are requesting me to now pay full price for the items in my cart/order that was part of the 50%off sale.How is it my fault your platform experienced technical difficulties due to the amount of online users?The consumer act clearly states that if an item is advertised for a certain price,the consumer is entitled to get it for that price. It's been 10 days and I'm still waiting on constructive feedback.