WORST SERVICE AND ATTITUDE

So this morning I purchase a 3d wheel alignment voucher on Hyperli for the Supa Quick Randburg. I follow the instructions and call Supa Quick Randburg on *** to make a reservation and speak to Wayne, I explain I purchased the voucher on Hyperli, he then advised me he can't help Hyperli clients due to them being short staff, so I politely ask if I pay cash can I make a reservation, he responds with a yes.,Wow, so I ask him what's the difference? He rudely tells me not to get clever and puts me on hold. I held on for like 10 minutes and then dropped. My question is whether I purchased a voucher online or pay cash I'm still a customer. TERRIBLE ATTITUDE from Wayne to say the least, even more shocking is that Hyperli nor Supa Quick have any notifications on their site stipulating thee so called restrictions.