Nobroker — not giving refund

Address:

Bangalore, Karnataka

I tool their money-back guarantee plan on 1 january 2019 with my requirements for a house and budget. The plan had a clause that the refund will be given if i found a house as per my requirements and budget on my own and not thru nobroker.
The relationship manager was showing places which were not as per my requirements but in my budget. I told him to look for places that match my requirements and that i don't mind if the budget exceeded as long as my requirements were matching. He agreed to this and sent some places outside by initial budget and location specifications and then proceeded on leave and nobody catered to my requirements. I started looking for the houses on my own and also had to hire another broker as my date to vacate was nearing.
I found a place of my requirements and now they are denying a refund claiming that the refund can be given only if the budget matches the requirements shared with the relationship manager at the time of agreement. There is no clause that says i cannot change my requirements after a few days especially since the relationship manager was showing me places which were not good and then went on leave and nobody sent me new leads. The relationship manager did not tell me that changing requirements was not possible and that if i did so, and found a place on my own i will not get a refund. How am i to know this if he doesn't tell me and instead starts looking for places as per the changed requirements?