Porter — advertising scam

Address: Smartshift Logistics Solutions Pvt.Ltd Module 220, First Floor TC 98/3715-2, The Atomic Near Technopark Phase-1, Kazhakkuttom PO, Thiruvananthapuram

Website: porter.in/two-wheelers/trivandrum

I am using Porter application and the provider had adviertised referral program showing that if a friend joins through my referral, then they will get a discount of 20% upto Rs.100 on their 1st and 2nd orders. But after the refered person joined registered on Porter application they could get discount only on the 1st order and the support executive is denying to provide discount on the 2nd order stating that they provide discount only on 1st order. This is incorrect as per their referral program advertised in the Porter application. This is cheating the cutomer with false advertisement.
I have attached the image of the advertisement provided on the Porter mobile application.