SOTC — bad service

We were given documents to produce at VFS visa application centre and when we produced them there we were told that my wife's documents are there but mine was not there. I had to telephone SOTC Coimbatore and got the documents by e-mail and got them printed by paying Rs 280 from my pocket.
I reported this matter to their customer care asking them to refund the amount but there has been no response.
Our tour commences on 30 Jul 2019. While Visa for UK and Schengen can be applied 90 days before departure, they fixed the appointment for UK Visa only on 04 Jun 2019. UK Visa may come only by 17 Jun or so after which only they will fix up appointment for Schengen Visa which means that till atleast 15 Jul 2019 we will have to wait