Claiming money back for flights & travel for course abroad not as advertised online

Hi, I’m brand new on here and wondered if anyone is able to advise on this please...

I recently travelled to India to complete a yoga teacher training course. However two days into the course there were many things not being taught or provided that were clearly advertised on their website. I emailed the course management stating I wish to withdraw, providing photographic evidence of everything and within a few hours they replied and refunded my entire course fee including my deposit.

I returned to the UK immediately to take up a course here instead, as the standard seemed a lot better. However, the total amount I spent on travel and expenses exceeded £1,100. I saved up for a long time for this and, as a friend has pointed out, I wanted to see if I can claim money back anyway for this.

My first point of call was my travel insurance. They do not cover this. Next I emailed the yoga school with evidence of all the expenses. No reply.

I would be extremely grateful if anyone has any suggestions on how else, if at all, I can try to claim some or all of this money back. If you need any further information, just let me know.

Many thanks in advance