My stupidity spoiled my interview at zomato today

So as I am constantly looking for entry level product roles and preparing for GRE together, i somehow received call from Zomato's hiring team yesterday that my interview is scheduled at 11 am today for ZAAP ( Zomato associate accelerator program) . I joined the interview via google meet , the role was based on customer experience aka customer delight where if you will perform well you can get to join other roles such as program management , growth etc. after 8-10 month or an year , there were some hypothetical situations that interviewer given to us while dealing with customers and instead of focusing on how should I present myself in front of customers, deal with them etc , i started giving the solutions for improving the products that would reduce the customer complaints and took some guesstimates into consideration, although my solution was unique where I also added that how apart from refund or replacement for their orders if they are disappointed, we could also provide reimbursement to them via giving coupon codes of blinkit where they could order ready to eat snacks instead of missing order if time was actually a constraint for them but i realised that at the end They were looking for my communication and grammar which is good but i didn't focus much on that instead of solving the problem in a whole product management consulting way ,

to to them