Bus changed boarding point without prior information

We had a bus to board at 9:10 from Mayura complex majestic. We reached the stop by 9:05 and we called the bus operator at 9:08 pm since we could not locate the bus. We called the bus operator and he said they changed the bus boarding point location. The location he sent was 15 mins from our location and it misleaded us to go inside a fire station. Then the bus started and asked us to follow them behind. We were not able to board the bus and we did not get the refund. If they could have informed us prior on the change of boarding point this would not happend