Do not purchase OLA voucher from Gyftr

I have been using Gyftr for several months and I have had positive experiences until I had the misfortune of buying a voucher of OLA Cabs on their website. In all fairness, while the terms and conditions are amply clear with regard to the use of the voucher, the terms and conditions are also outrageous! Because of their "one time use" policy, I lost Rs. 800 on a Rs.1,000 voucher. I was stunned by loosing so much money without utilizing the voucher completely. When I brought this to the attention of Gyftr, the platform that sells the OLA cab vouchers, they responded that there is nothing that can be done about it. I also reached out to OLA Cabs, who did not respond or acknowledge my concern. My concern is specifically related to how nonviable and non-user friendly the voucher terms and conditions are for the consumer. If the voucher's validity is only applicable to the extent of a one time use, it is significantly disadvantageous. My question to GYFTR is related to the ethics of endorsing and supporting a company like OLA , which in my opinion, has developed a sophisticated style of scamming consumers. Please do not buy the OLA vouchers.